Alpha Centauri - Knowledge

4314: 2640: 2861: 2392: 61: 11883: 3007: 2560: 12126: 2740: 13912: 3133: 11878: 2752: 13900: 4104: 14129: 13849: 13906: 2179: 2186: 3290: 14402: 14540: 13771: 11979: 3735:), would permit an accretion-friendly environment farther from the star. Bodies around Alpha Centauri A would be able to orbit at slightly farther distances due to its stronger gravity. In addition, the lack of any brown dwarfs or gas giants in close orbits around Alpha Centauri make the likelihood of terrestrial planets greater than otherwise. A theoretical study indicates that a radial velocity analysis might detect a hypothetical planet of 1.8 4007: 7767: 14600: 3421: 14612: 14576: 14529: 7778: 10828: 8198: 6356: 14588: 3681:. This planet would most likely orbit Alpha Centauri B with an orbital period of 20.4 days or less, with only a 5% chance of it having a longer orbit. The median of the likely orbits is 12.4 days. Its orbit would likely have an eccentricity of 0.24 or less. It could have lakes of molten lava and would be far too close to Alpha Centauri B to harbour 2865:

the plane of the orbital motion. According to the radial velocity versus time, the radial separation of A and B along the line of sight had reached a maximum in 2007, with B being further from Earth than A. The orbit is divided here into 80 points: each step refers to a timestep of approx. 0.99888 years or 364.84 days.

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of other planetary systems. When they are influenced gravitationally by either the gas giants or disruptions by passing nearby stars, many of these icy bodies then travel star-wards. Such ideas also apply to the close approach of Alpha Centauri or other stars to the Solar system, when, in the distant

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Alpha Centauri B, also known as Toliman, is the secondary star of the binary system. It is a main-sequence star of spectral type K1-V, making it more an orange colour than Alpha Centauri A; it has around 90% of the mass of the Sun and a 14% smaller diameter. Although it has a lower luminosity than A,

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through the PA of 337.1°, increasing to 5.49 arcsec through 345.3° in 2020. The closest recent approach was in February 2016, at 4.0 arcsec through the PA of 300°. The observed maximum separation of these stars is about 22 arcsec, while the minimum distance is 1.7 arcsec. The widest separation

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with a period of about one year, and to have a mass between that of Neptune and one-half that of Saturn, though it may be a dust disk or an artifact. The possibility of C1 being a background star has been ruled out. If this candidate is confirmed, the temporary name C1 will most likely be replaced

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Apparent and true orbits of Alpha Centauri. The A component is held stationary, and the relative orbital motion of the B component is shown. The apparent orbit (thin ellipse) is the shape of the orbit as seen by an observer on Earth. The true orbit is the shape of the orbit viewed perpendicular to

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at visual wavelengths, then fade after only a few minutes. Some amateur and professional astronomers regularly monitor for outbursts using either optical or radio telescopes. In August 2015, the largest recorded flares of the star occurred, with the star becoming 8.3 times brighter than

4377:(about 108 million km/h), which NASA experts say may be possible, it would take a spacecraft 44 years to reach the constellation, by the year 2113, and would take another 4 years for a signal, by the year 2117 to reach Earth. The concept received no further funding or development. 2851:

refers to the component of Proxima Centauri in relation to the central binary, being the distance between the centre of mass and the outlying companion. Because the distance between Proxima (C) and either of Alpha Centauri A or B is similar, the AB binary system is sometimes treated as a single

2938: km) from Alpha Centauri AB, equivalent to about 5% of the distance between Alpha Centauri AB and the Sun. Until 2017, measurements of its small speed and its trajectory were of too little accuracy and duration in years to determine whether it is bound to Alpha Centauri AB or unrelated. 2536:

of Alpha Centauri was subsequently determined by Henderson from many exacting positional observations of the AB system between April 1832 and May 1833. He withheld his results, however, because he suspected they were too large to be true, but eventually published them in 1839 after

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Carter, Aarynn L.; Hinkley, Sasha; Kammerer, Jens; Skemer, Andrew; Biller, Beth A.; Leisenring, Jarron M.; Millar-Blanchaer, Maxwell A.; Petrus, Simon; Stone, Jordan M.; Ward-Duong, Kimberly; Wang, Jason J.; Girard, Julien H.; Hines, Dean C.; Perrin, Marshall D.; Pueyo, Laurent (2023).

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Beichman, Charles; Ygouf, Marie; Llop Sayson, Jorge; Mawet, Dimitri; Yung, Yuk; Choquet, Elodie; Kervella, Pierre; Boccaletti, Anthony; Belikov, Ruslan; Lissauer, Jack J.; Quarles, Billy; Lagage, Pierre-Olivier; Dicken, Daniel; Hu, Renyu; Mennesson, Bertrand (1 January 2020).

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the mean radial velocity has been determined to be around 22.4 km/s (13.9 mi/s) towards the Solar System. This gives a speed with respect to the Sun of 32.4 km/s (20.1 mi/s), very close to the peak in the distribution of speeds of nearby stars.

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Soubiran, C.; Creevey, O. L.; Lagarde, N.; Brouillet, N.; Jofré, P.; Casamiquela, L.; Heiter, U.; Aguilera-Gómez, C.; Vitali, S.; Worley, C.; de Brito Silva, D. (1 February 2024), "Gaia FGK benchmark stars: Fundamental Teff and log g of the third version",

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Current estimates place the probability of finding an Earth-like planet around Alpha Centauri at roughly 75%. The observational thresholds for planet detection in the habitable zones by the radial velocity method are currently (2017) estimated to be about

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Proper motions are expressed in smaller angular units than arcsec, being measured in milliarcsec (mas.) (thousandths of an arcsec). Negative values for proper motion in RA indicate the sky motion is from east to west, and in declination north to

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Additional planets may exist in the Alpha Centauri system, either orbiting Alpha Centauri A or Alpha Centauri B individually, or in large orbits around Alpha Centauri AB. Because both stars are fairly similar to the Sun (for example, in age and

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Boffin, Henri M.J.; Pourbaix, D.; Mužić, K.; Ivanov, V.D.; Kurtev, R.; Beletsky, Y.; et al. (4 December 2013). "Possible astrometric discovery of a substellar companion to the closest binary brown dwarf system WISE J104915.57–531906.1".

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in 1838. For this reason, Alpha Centauri is sometimes considered as the second star to have its distance measured because Henderson's work was not fully acknowledged at first. (The distance of Alpha Centauri from the Earth is now reckoned at

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from Proxima Centauri with a period of 1,928 days (5.28 yr). In June 2020, a possible direct imaging detection of the planet hinted at the presence of a large ring system. However, a 2022 study disputed the existence of this planet.

3564:. The coronographic observations, which occurred on July 26 and 27, 2023, were failures, though there are follow-up observations in March 2024. Pre-launch estimates predicted that JWST will be able to find planets with a radius of 5 8531:

Marshall Eubanks, T.; Hein, Andreas M.; Lingam, Manasvi; Hibberd, Adam; Fries, Dan; Perakis, Nikolaos; et al. (2021). "Interstellar objects in the Solar System: 1. Isotropic kinematics from the Gaia early data release 3".

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from the star. Certain special assumptions, such as considering that the Alpha Centauri pair may have initially formed with a wider separation and later moved closer to each other (as might be possible if they formed in a dense

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is about 3620 mas/y (milliarcseconds per year) toward the west and 694 mas/y toward the north, giving an overall motion of 3686 mas/y in a direction 11° north of west. The motion of the centre of mass is about

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The Alpha Centauri system as a whole has two confirmed planets, both of them around Proxima Centauri. While other planets have been claimed to exist around all of the stars, none of the discoveries have been confirmed.

7946: 3807:, but most recent numerical investigations have shown that the gravitational pull of the companion star renders the accretion of planets difficult. Despite these difficulties, given the similarities to the Sun in 2659:

against the background sky. Over centuries, this causes their apparent positions to slowly change. Proper motion was unknown to ancient astronomers. Most assumed that the stars were permanently fixed on the

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program, could make the journey to Alpha Centauri in 20 years. An objective of such a mission would be to make a fly-by of, and possibly photograph, planets that might exist in the system. The existence of

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Results of astronomical observations made during the years 1834, 5, 6, 7, 8 at the Cape of Good Hope; being the completion of a telescopic survey of the whole surface of the visible heavens, commenced in

1657:, named after the half human, half horse creature in Greek mythology. Hercules accidentally wounded the centaur and placed him in the sky after his death. Alpha Centauri marks the right front hoof of the 2337:. Proxima Centauri appears as a deep-red star of a typical apparent magnitude of 11.1 in a sparsely populated star field, requiring moderately sized telescopes to be seen. Listed as V645 Cen in the 10436:

Guedes, Javiera M.; Rivera, Eugenio J.; Davis, Erica; Laughlin, Gregory; Quintana, Elisa V.; Fischer, Debra A. (2008). "Formation and Detectability of Terrestrial Planets Around Alpha Centauri B".

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Radial velocity measurements made in 2017 were precise enough to show that Proxima Centauri and Alpha Centauri AB are gravitationally bound. The orbital period of Proxima Centauri is approximately

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With various notes and corrections, and a preface to each catalogue. To which is added the synonym of each star, in the catalogues or Flamsteed of Lacaille, as far as the same can be ascertained.

6708: 3854:, 2002T7, and Tuttle yield values approximately twice that of Earth's oceanic water, more recent models and research predict that less than 10% of Earth's water was supplied from comets. In the 3144:

within 9 light years (ly) from its center the Sun (Sol). Just next to Alpha Centauri is Proxima Centauri: marked, but unlabeled. The diamond-shapes are their positions entered according to

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compared to 11 years for the Sun, and has about half the minimum-to-peak variation in coronal luminosity of the Sun. Alpha Centauri B has an apparent magnitude of +1.35, slightly dimmer than

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and never sets below the horizon. North of about 29° N latitude, Alpha Centauri never rises. Alpha Centauri lies close to the southern horizon when viewed from the 29° North latitude to the

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Gratton, Raffaele; Zurlo, Alice; Le Coroller, Hervé; et al. (June 2020). "Searching for the near-infrared counterpart of Proxima c using multi-epoch high-contrast SPHERE data at VLT".

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Ducati, J. R. (2002). Catalogue of Stellar Photometry in Johnson's 11 color system. VizieR Online Data Catalog (Report). CDS/ADC Collection of Electronic Catalogues. Vol. 2237.

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by analysing his many astrometric mural circle observations. He then realised this system also likely had a high proper motion. In this case, the apparent stellar motion was found using

2827:, which will brighten incrementally over the next 60,000 years, and will continue to be the brightest star as seen from Earth (other than the Sun) for the next 210,000 years. 3878:

and B themselves were able to perturb comets into each other's inner systems, as Jupiter and Saturn presumably have done in the Solar System. Such icy bodies probably also reside in

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at periods shorter than 50 days, but the authors detected a radial-velocity curve with a periodicity of 5.15 days, suggesting the presence of a planet with a mass of about 0.29

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close to those now accepted for this system. All future positions are now sufficiently accurate for visual observers to determine the relative places of the stars from a binary star

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Muhammedis son of Ketiri Ferganensis, who is commonly called al-Fraganus, Astronomical Elements, Arabic and Latin. With notes to the exotic or oriental things that occur in them.

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where the star is circumpolar will be south of −29° 10′ South or 29°. Similarly, the place where Alpha Centauri never rises for northern observers is north of the latitude (90°+

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Maclear, T. (1851). "Determination of the Parallax of α 1 and α2 Centauri, from Observations made at the Royal Observatory, Cape of Good Hope, in the Years 1842-3-4 and 1848".

3702:), astronomers have been especially interested in making detailed searches for planets in the Alpha Centauri system. Several established planet-hunting teams have used various 7061:

Muhammedis fil. Ketiri Ferganensis, qui vulgo Alfraganus dicitur, Elementa astronomica, Arabicè & Latinè. Cum notis ad res exoticas sive Orientales, quae in iis occurrunt

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Kervella, P.; Bigot, L.; Gallenne, A.; Thévenin, F. (January 2017). "The radii and limb darkenings of α Centauri A and B. Interferometric measurements with VLTI/PIONIER".

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in 2012, which was proposed to be an Earth-mass planet in a 3.2-day orbit. This was refuted in 2015 when the apparent planet was shown to be an artifact of the way the

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Gilli, G.; Israelian, G.; Ecuvillon, A.; Santos, N.C.; Mayor, M. (2006). "Abundances of refractory elements in the atmospheres of stars with extrasolar planets".

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Pourbaix, D.; et al. (2002). "Constraining the difference in convective blueshift between the components of alpha Centauri with precise radial velocities".

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Relative positions of Sun, Alpha Centauri AB and Proxima Centauri. Grey dot is projection of Proxima Centauri, located at the same distance as Alpha Centauri AB.

9198: 3208:, as modulated by the rotation of the star. However, since 2005 the activity level has fallen into a deep minimum that might be similar to the Sun's historical 9969:"The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems I: High-contrast Imaging of the Exoplanet HIP 65426 b from 2 to 16 μm" 3811:, star type, age and probable stability of the orbits, it has been suggested that this stellar system could hold one of the best possibilities for harbouring 3721:

In 2009, computer simulations showed that a planet might have been able to form near the inner edge of Alpha Centauri B's habitable zone, which extends from

9798: 10081: 7802:"The interface between the outer heliosphere and the inner local ISM: Morphology of the local interstellar cloud, its hydrogen hole, Strömgren shells, and 3672:

from 2013 to 2014. This search detected one potential transit-like event, which could be associated with a different planet with a radius around 0.92

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each millennium. The speed in the western direction is 23.0 km/s (14.3 mi/s) and in the northerly direction 4.4 km/s (2.7 mi/s). Using

1533:). Though not visible to the naked eye, Proxima Centauri is the closest star to the Sun at a distance of 4.24 ly (1.30 pc), slightly closer than 11180: 8854:

Thévenin, F.; Provost, J.; Morel, P.; Berthomieu, G.; Bouchy, F.; Carrier, F. (2002). "Asteroseismology and calibration of alpha Cen binary system".

4335:. Using current spacecraft technologies, crossing the distance between the Sun and Alpha Centauri would take several millennia, though the possibility of 14717: 11447: 10864: 13947: 12028: 1232: 1196: 11215: 7713:

Benedict, G. Fritz; McArthur, Barbara; Nelan, E.; Story, D.; Whipple, A.L.; Shelus, P.J.; et al. (1998). Donahue, R.A.; Bookbinder, J.A. (eds.).

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Huber, Daniel; Zwintz, Konstanze; et al. (the BRITE team) (July 2020). "Solar-like oscillations: Lessons learned & first results from TESS".

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Torres, C.A.O.; Quast, G.R.; da Silva, L.; de la Reza, R.; Melo, C.H.F.; Sterzik, M. (2006). "Search for associations containing young stars (SACY)".

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of a "Tier-1" target would have been possible with this new instrument. The S.I.M. mission, however, was cancelled due to financial issues in 2010.

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into the inner Solar System, providing the inner planets with a source of water and various other ices. However, since isotope measurements of the

5402: 1777:; it was often not clear on old star maps which name was intended to go with which star (or stars), and the referents changed over time. The name 7772: 9025:

Thoul, A.; Scuflaire, R.; Noels, A.; Vatovez, B.; Briquet, M.; Dupret, M.-A.; Montalban, J. (2003). "A new seismic analysis of alpha Centauri".

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in the habitable zone, though it is not yet known with certainty to be planetary in nature and could be an artifact of the discovery mechanism.

1314: 1054: 840: 11775: 11746: 3752: 1224: 8688: 5394:{\displaystyle {\begin{smallmatrix}\left({\frac {\ 11.2+35.6\ }{2}}\right)^{3}{\frac {1}{~79.91^{2}\ }}\approx 2.0\end{smallmatrix}}\qquad } 8252: 3069:

theory implies both stars are slightly older than the Sun at 5 to 6 billion years, as derived by their mass and spectral characteristics.

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Lissauer, J.J.; Quintana, E.V.; Chambers, J.E.; Duncan, M.J.; Adams, F.C. (2004). "Terrestrial planet formation in binary star systems".

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Demory, Brice-Olivier; Ehrenreich, David; Queloz, Didier; Seager, Sara; Gilliland, Ronald; Chaplin, William J.; et al. (June 2015).

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Kunitzsch, P. (1976). "Naturwissenschaft und Philologie: Die arabischen Elemente in der Nomenklatur und Terminologie der Himmelskunde".

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Quintana, E. V.; Lissauer, J. J.; Chambers, J. E.; Duncan, M. J. (2002). "Terrestrial Planet Formation in the Alpha Centauri System".

7147:(September 1917). "Parallax of the faint proper motion star near alpha of Centaurus. 1900. R.A. 14h22m55s-0s 6t. Dec-62° 15'2 0'8 t". 6819: 2815:

away, though later calculations suggest that this will occur in 27,000 AD. At its nearest approach, α Centauri will attain a maximum

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has a resolution of 60 arcsec), but through much of the orbit, both are easily resolved in binoculars or small telescopes. At −0.27

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Quintana, Elisa V.; Lissauer, Jack J. (2007). "Terrestrial planet formation in binary star systems". In Haghighipour, Nader (ed.).

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Baily, Francis (1843). "The Catalogues of Ptolemy, Ulugh Beigh, Tycho Brahe, Halley, Hevelius, deduced from the best authorities".

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will also occur in the coming decades, allowing accurate measurement of proper motions and possibly giving information on planets.

10252: 14697: 14667: 13805: 8349: 4237:. With a magnitude of −1.2, Sirius would be a little fainter than from Earth but still the brightest star in the night sky. Both 3901:

so as to have similar planetary temperatures and conditions for liquid water to exist. For the slightly less luminous and cooler

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Miglio, A.; Montalbán, J. (2005). "Constraining fundamental stellar parameters using seismology. Application to α Centauri AB".

5720:"Spectroscopic properties of cool stars (SPOCS) I. 1040 F, G, and K dwarfs from Keck, Lick, and AAT planet search programs" 3862:

system was forming, enriching the area around Alpha Centauri with volatile materials. This would be discounted if, for example,

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methods in their searches around these two bright stars. All the observational studies have so far failed to find evidence for

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Alpha Centauri A, also known as Rigil Kentaurus, is the principal member, or primary, of the binary system. It is a solar-like

2644: 1390: 6780: 2687:'s astrometric observations of 1751–1752, by the observed differences between the two measured positions in different epochs. 14124: 10595: 8671: 8442: 8378: 8289: 8207: 8060: 7940: 7587: 7515: 7486: 7244: 7187: 7098: 6887: 6860: 6738: 4071: 2767:

will continue to change its position in the sky significantly and will gradually brighten. For example, in about 6,200

4043: 2529: 14647: 14642: 14637: 12385: 7718: 2920:(PA) are in continuous change throughout their projected orbit. Observed stellar positions in 2019 are separated by 4.92 2339: 12041: 13389: 8435:

Travels at the Cape, 1751–1753: An annotated translation of journal historique du voyage fait au Cap de Bonne-Espérance

7068:]. Opera Jacobi Golii (in Latin). apud Johannem Jansonium à Waasberge, & viduam Elizei Weyerstraet. p. 76. 6012: 5428:

applied to the equation quoted, and presumably used, to calculate the planet mass from the planet radius in the Wagner

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planet within the habitable zone of the star (i.e. with an orbital period P = 200 days), but no planets were detected.

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Davis Jr, George R. (October 1944). "The pronunciations, derivations, and meanings of a selected list of star names".

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G2-V; it is about 10% more massive than the Sun, with a radius about 22% larger. When considered among the individual

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Barbieri, M.; Marzari, F.; Scholl, H. (2002). "Formation of terrestrial planets in close binary systems: The case of

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Wiegert, J.; Liseau, R.; Thébault, P.; Olofsson, G.; Mora, A.; Bryden, G.; et al. (March 2014). "How dusty is

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Kameswara-Rao, N.; Vagiswari, A.; Louis, C. (1984). "Father J. Richaud and early telescope observations in India".

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Hamacher, Duane W.; Frew, David J. (2010). "An Aboriginal Australian Record of the Great Eruption of Eta Carinae".

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Robrade, J.; Schmitt, J. H. M. M.; Favata, F. (2005). "X-rays from α Centauri – The darkening of the solar twin".

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Eggenberger, P.; Charbonnel, C.; Talon, S.; Meynet, G.; Maeder, A.; Carrier, F.; Bourban, G. (2004). "Analysis of

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The A and B components of Alpha Centauri have an orbital period of 79.762 years. Their orbit is moderately

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is smaller and cooler, at 0.9 solar mass and less than 0.5 solar luminosity. The pair orbit around a

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Gill, David; Elkin, W. L. (1885). "Heliometer-Determinations of Stellar Parallax in the Southern Hemisphere".

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through the sky. (The other stars are held fixed for didactic reasons) "Oggi" means today; "anni" means years.

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Artigau, Étienne; Cadieux, Charles; Cook, Neil J.; Doyon, René; Vandal, Thomas; et al. (23 June 2022).

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A 2020 paper refining Proxima b's mass excludes the presence of extra companions with masses above 0.6

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in the night sky, it is the fourth-brightest at an apparent magnitude of +0.01, being slightly fainter than

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Akeson, Rachel; Beichman, Charles; Kervella, Pierre; Fomalont, Edward; Benedict, G. Fritz (20 April 2021).

4294:(with a revolution period of 0.63 years) would get nearly Sun-like illumination from its primary, and 4039: 3921: 3745: 3358: 2847:, denotes the mass centre of a main binary system relative to companion star(s) in a multiple star system. 2605:. Others, like D. Pourbaix (2002), have regularly refined the precision of new published orbital elements. 2502: 2111: 1259: 1228: 11604: 11589: 9551:

Suárez Mascareño, A.; Faria, J. P.; Figueira, P.; et al. (2020). "Revisiting Proxima with ESPRESSO".

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Wagner, K.; Boehle, A.; Pathak, P.; Kasper, M.; Arsenault, R.; Jakob, G.; et al. (10 February 2021).

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Dumusque, Xavier (December 2014). "Deriving Stellar Inclination of Slow Rotators Using Stellar Activity".

5444:(although this radius-mass relationship is for low-mass planets and not for larger gas giants). Therefore 3099:, respectively, though slightly different masses have also been quoted in recent years, such as 1.14 2230: 14370: 14324: 13798: 13147: 11941: 10917: 10617: 6186: 4363: 4326: 2446: 2194: 1188: 14702: 14566: 13888: 12405: 7873: 6068: 5918: 5654: 5170: 4191: 4143: 4128: 3938:

Based on observations between 2007 and 2012, a study found a slight excess of emissions in the 24

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nature of Alpha Centauri AB was recognized in December 1689 by Jean Richaud, while observing a passing

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survey. These showed large proper motion and parallax similar in both size and direction to those of

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During the 19th century, the northern amateur popularist E.H. Burritt used the now-obscure name

1420: 1416: 1360: 1251: 1216: 14193: 10402: 6291: 4273:(with a revolution period of 1.34 years) would get Sun-like illumination from its primary, and 3327: 3053:

Gyr. Age estimates for the stars based on chromospheric activity (Calcium H & K emission) yield

1300: 1291: 14657: 14464: 14437: 14415: 13172: 6630: 5800: 4336: 2921: 2538: 2482: 1626:, purportedly discovered in 2012, was later disproven, and no other planet has yet been confirmed. 1282: 43: 11783: 11754: 6176:

Raassen, A.J.J.; Ness, J.-U.; Mewe, R.; van der Meer, R.L.J.; Burwitz, V.; Kaastran, J.S. (2003).

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of the IAU, having decided to attribute proper names to individual component stars rather than to

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with the scientific designation Alpha Centauri Ab in accordance with current naming conventions.

3182: 3137: 2728: 1440: 13911: 9205:. Commonwealth Scientific and Industrial Research Organisation. 21 December 2004. Archived from 8256: 7715:

Proxima Centauri: Time-resolved astrometry of a flare site using HST fine guidance sensor 3

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but still 150–2,100 times brighter than the full Moon. Conversely, an Earth-like planet at

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Alpha Centauri is a triple star system, with its two main stars, A and B, together comprising a

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deduced from Mr. Maclear's observations at the Cape of Good Hope, in the years 1839 and 1840".

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system, but for practical and historical reasons it is described in detail in its own article.

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forms in the sky. In ancient Egypt it was also revered and in China it is known as part of the

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would appear 4.6–7.3 magnitudes dimmer (−22.1 to −19.4), 70 to 840 times dimmer than

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would appear 5.7–8.6 magnitudes dimmer (−21.0 to −18.2), 190–2,700 times dimmer than

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or B would see the other star as a very bright secondary. For example, an Earth-like planet at

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find that JWST will be able to find planets even closer to Alpha Centauri A and could find a 5

3174: 3018: 2631:. As such, Innes concluded that Proxima Centauri was the closest star to Earth yet discovered. 2594: 2567: 1255: 1220: 1200: 1192: 712: 269: 232: 14188: 10585: 7612: 4366:, scheduled to coincide with the 100th anniversary of the first crewed lunar landing in 1969, 2887: km), or about the distance between the Sun and Saturn; and their furthest separation or 2263:—the Southern Cross. The Pointers easily distinguish the true Southern Cross from the fainter 14482: 13596: 13591: 13491: 12780: 12589: 11993: 11951: 10164:"Hubble Space Telescope search for the transit of the Earth-mass exoplanet Alpha Centauri Bb" 8798:(2008). "Improved age estimation for Solar-type dwarfs using activity-rotation diagnostics". 7059: 6788:. Smithsonian Studies in History and Technology. Vol. 46. Smithsonian Institution Press. 6730:

A Dictionary of Modern Star Names: A short guide to 254 star names and their derivations

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Wiegert, P.A.; Holman, M.J. (1997). "The stability of planets in the Alpha Centauri system".

5199: 5138: 4344: 4234: 4108: 3812: 3682: 2800: 2744: 2639: 2533: 2348: 2322:. The star culminates each year at local midnight on 24 April and at local 9 p.m. on 8 June. 1638: 1062: 848: 662: 11734: 11190: 10940: 10640: 9767: 9574: 9416: 9363: 9251: 9105: 9048: 8995: 8877: 8735: 8606: 8501: 8353: 8050: 7896: 7604: 7577: 7476: 6487: 6424: 6199: 6091: 5992: 5941: 5677: 5589: 4064: 3543:(abbreviated as C1) was detected around Alpha Centauri A, thought to orbit at approximately 2723:

will pass between the Earth and a distant red star, when there is a 45% probability that an

14495: 14229: 14221: 13928: 13718: 13455: 12725: 11667: 11439: 11400: 11369: 11334: 11303: 11276: 10936: 10791: 10719: 10689: 10636: 10538: 10519: 10455: 10389: 10341: 10185: 10049: 9990: 9924: 9763: 9708: 9649: 9570: 9506: 9412: 9359: 9303: 9247: 9172:(Report). Research Consortium on Nearby Stars. Georgia State University. 7 September 2007. 9148: 9101: 9044: 8991: 8936: 8873: 8817: 8731: 8698: 8602: 8565: 8497: 8407: 8321: 8144: 8110: 8028: 7991: 7892: 7834: 7749: 7722: 7685: 7453:

Stanbridge, W. M. (1857). "On the Astronomy and Mythology of the Aboriginies of Victoria".

7419: 7216: 7156: 7126: 7086: 6985: 6828: 6761: 6672: 6593: 6535: 6518:"Line-by-line velocity measurements, an outlier-resistant method for precision velocimetry" 6483: 6420: 6326: 6252: 6195: 6142: 6087: 6044: 5988: 5937: 5879: 5819: 5731: 5673: 5629: 5585: 4318: 4214: 3707: 3689:. However, the name has not been used in the literature, as it is not a claimed discovery. 3665: 3658: 3472: 2870: 2772: 2470: 2414: 2396: 2264: 2236: 2140: 1484: 616: 507: 389: 12281: 7344: 5129:

Alpha Centauri has been recognized and associated throughout history, particularly in the

8: 14616: 14421: 14410: 14103: 13842: 10841: 10497: 8179: 6928: 5130: 4332: 4199: 4146:

connected by lines, and the Sun, labeled "Sol", as it would appear to the left of the "W"

3894:, a planet around Alpha Centauri A would have an orbital radius of between about 1.2 and 3851: 3804: 3477: 3010:

The relative sizes and colours of stars in the Alpha Centauri system, compared to the Sun

2587: 2583: 2517: 2404: 1766: 1263: 1236: 11715: 11443: 11404: 11373: 11338: 11307: 11280: 10795: 10723: 10693: 10542: 10459: 10393: 10345: 10189: 10053: 9994: 9928: 9902: 9712: 9653: 9510: 9307: 9152: 8940: 8821: 8569: 8411: 8325: 8148: 8114: 8032: 7995: 7935:. Translated by Toomer, G. J. London: Gerald Duckworth & Co. p. 368, note 136. 7838: 7753: 7726: 7689: 7423: 7220: 7160: 7130: 7090: 6989: 6832: 6765: 6676: 6597: 6539: 6330: 6256: 6146: 6048: 5883: 5823: 5735: 5633: 4162:

itself, would be absent from the constellation. The Sun would appear as a white star of

14672: 14604: 14533: 14459: 14382: 14303: 13999: 13861: 13774: 13308: 13303: 13298: 13177: 12371: 12339: 12174: 12170: 12166: 11924: 11919: 11914: 11185: 11156: 11057: 10952: 10926: 10809: 10781: 10714: 10679: 10652: 10626: 10556: 10528: 10471: 10445: 10415: 10359: 10331: 10203: 10175: 10073: 9980: 9948: 9914: 9825: 9779: 9753: 9726: 9672: 9631: 9586: 9560: 9530: 9496: 9436: 9402: 9375: 9349: 9319: 9293: 9263: 9237: 9117: 9091: 9060: 9034: 9007: 8981: 8954: 8926: 8889: 8863: 8833: 8807: 8747: 8721: 8618: 8592: 8533: 8513: 8487: 7908: 7882: 7852: 7824: 7435: 7409: 7144: 7114: 7040: 7001: 6690: 6662: 6616: 6583: 6571: 6525: 6473: 6436: 6410: 6270: 6242: 6158: 6132: 6103: 6077: 6034: 5953: 5927: 5895: 5869: 5837: 5809: 5697: 5663: 5601: 5575: 4349: 4163: 3947: 3800: 3424:

The discovery image of Alpha Centauri's candidate Neptunian planet, marked here as "C1"

3321: 3317: 3313: 3271: 3190: 3157: 3121: 2816: 2608: 2559: 2224: 2120: 1815: 1808:"the ostriches", the name of an asterism of which Alpha Centauri formed the main star. 1586: 1571: 1563: 1553: 1436: 528: 410: 210: 158: 60: 14155: 10804: 10767: 10021:

Dumusque, X.; Pepe, F.; Lovis, C.; Ségransan, D.; Sahlmann, J.; Benz, W.; Bouchy, F.;

7431: 6154: 3085:– or twice that of the Sun. The average individual stellar masses are about 1.08 14365: 14279: 13939: 13869: 12564: 12559: 12534: 12529: 12429: 12196: 11903: 10956: 10884: 10813: 10656: 10591: 10560: 10354: 10319: 10207: 10065: 9952: 9940: 9783: 9730: 9677: 9590: 9522: 9428: 9323: 9315: 9121: 9011: 8958: 8949: 8908: 8795: 8667: 8638: 8438: 8374: 8285: 8056: 7936: 7856: 7616: 7605: 7583: 7511: 7504: 7482: 7439: 7183: 7094: 7005: 6883: 6856: 6734: 6694: 6621: 6274: 6162: 6107: 6004: 5841: 5749: 5689: 5209: 3897: 3843: 3654: 3648: 3452: 3354: 3285:. It is the closest star to the Sun but is too faint to be visible to the naked eye. 3197: 3066: 2994: 2976: 2788: 2438: 2097: 1770: 1646: 1621: 1601: 1542: 1488: 1308: 1247: 1212: 941: 687: 87: 11244:"Do aliens live at Alpha Centauri? NASA wants to send a mission in 2069 to find Out" 10475: 10419: 10363: 10293: 9440: 9267: 9169: 9064: 8893: 8837: 8751: 8622: 8517: 7912: 7082:

The Brightest Stars: Discovering the universe through the sky's most brilliant stars

6440: 5957: 5899: 5701: 5605: 3332:

Proxima Centauri b is a terrestrial planet discovered in 2016 by astronomers at the

14580: 14388: 14321: 14239: 13687: 13420: 12474: 12452: 12447: 12442: 12155: 11956: 11864: 11703: 11691: 11679: 11408: 11342: 11129: 10944: 10799: 10644: 10546: 10463: 10407: 10349: 10193: 10077: 10057: 9998: 9932: 9771: 9716: 9667: 9657: 9578: 9534: 9514: 9420: 9393:

Kervella, P.; Thévenin, F.; Lovis, C. (2017). "Proxima's orbit around α Centauri".

9367: 9311: 9255: 9109: 9052: 8999: 8944: 8881: 8825: 8766: 8739: 8663: 8610: 8556:

Matthews, R.A.J. (1994). "The close approach of stars in the Solar neighbourhood".

8505: 8415: 8329: 8152: 7999: 7900: 7842: 7693: 7427: 7224: 7032: 6993: 6680: 6611: 6601: 6543: 6491: 6428: 6260: 6203: 6150: 6095: 5996: 5945: 5887: 5827: 5739: 5681: 5593: 5228: 5204: 3793: 3261: 3073: 3014: 2962: 2661: 2612: 2598: 2330: 2299: 2279: 2151:, two brothers noted for their courage and destructiveness, who speared and killed 2116: 2043: 1993: 1920: 1860: 1693: 1469: 1381: 1106: 1098: 1029: 892: 884: 815: 491: 373: 67: 14175: 10948: 10030: 9775: 9582: 9424: 9379: 9259: 8614: 8509: 8211: 8076: 7904: 7319: 6496: 6432: 6000: 3799:

Early computer-generated models of planetary formation predicted the existence of

3364:

The discovery of Proxima Centauri c was formally published in 2020 and could be a

14509: 14376: 14234: 13677: 12504: 12319: 10648: 9632:"A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 9371: 9113: 9056: 9003: 8885: 8743: 8368: 8279: 7370: 7080: 6877: 6850: 6728: 6208: 6177: 6099: 5949: 5685: 5597: 4250: 4210: 4179: 4171: 3924:(S.I.M.). Detecting planets as small as three Earth-masses or smaller within two 3847: 3703: 3560:(JWST) to search for planets around Alpha Centauri A, as well as observations of 3209: 3145: 2860: 2586:

observations in 1834. Since the early 20th century, measures have been made with

2156: 1155: 1042: 828: 595: 432: 314: 181: 129: 13899: 10768:"Calculating the habitable zone of binary star systems. I. S-type binaries" 10513:

Zhao, L.; Fischer, D.; Brewer, J.; Giguere, M.; Rojas-Ayala, B. (January 2018).

5312: 3274:

of +15.60, over 20,000 times fainter than the Sun. Its mass is calculated to be

3006: 2215:. Their apparent angular separation varies over about 80 years between 2 and 22 13705: 13384: 13197: 12770: 12765: 12549: 12499: 12489: 12469: 12464: 11085: 11048: 10551: 10257: 10003: 9968: 9936: 9721: 9696: 7847: 7801: 6997: 6606: 6548: 6517: 6265: 6224: 5832: 5791: 5181:

asterism. Due to its proximity, the Alpha Centauri system has appeared in many

5158: 4403: 4374: 3959: 3891: 3561: 3520: 3459: 3201: 3022: 2917: 2792: 2700: 2457:

brought Alpha Centauri to the attention of European observers in his 1592 work

2311: 2303: 2291: 1823: 1782: 1567: 1176: 572: 499: 479: 467: 381: 361: 349: 14170: 11565:

Söderhjelm, Staffan (1999). "Visual binary orbits and masses post Hipparcos".

11102:"Forget Starships: New Proposal Would Use 'Starchips' To Visit Alpha Centauri" 9484: 6397:

Kervella, P.; Thévenin, F.; Lovis, C. (January 2017). "Proxima's orbit around

6225:"Classically and asteroseismically constrained 1D stellar evolution models of 2505:. Alpha Centauri was only the third binary star to be discovered, preceded by 2403:

Alpha Centauri is listed in the 2nd century the star catalog appended to

2075:). Its origin is not known, but it may have been coined from the Greek letter 14626: 14315: 13993: 12735: 12730: 12720: 12715: 12710: 12700: 12690: 12685: 12680: 12494: 12479: 12459: 12363: 12219: 12074: 11412: 11346: 11220: 10915:

Excess or non-excess over the infrared photospheres of main-sequence stars".

10832: 10227: 10026: 9944: 9485:"A terrestrial planet candidate in a temperate orbit around Proxima Centauri" 9432: 8419: 8334: 8202: 8101: 8004: 7975: 7971: 7698: 7669: 7637: 6360: 6008: 5753: 5693: 5150: 4222: 4195: 3912:

With the goal of finding evidence of such planets, both Proxima Centauri and

3808: 3266:

Alpha Centauri C, better known as Proxima Centauri, is a small main-sequence

3249: 3221: 3178: 3170: 2905:

was in August 1955 and the next will occur in May 2035; the most recent

2776: 2724: 2665: 2656: 2616: 2579: 2434: 2256: 2144: 2090: 1850: 1838:(IAU) as the approved proper name; commonly, it is frequently abbreviated to 1774: 1356: 456: 338: 105: 75: 13905: 11801: 9903:"Searching for Planets Orbiting α Cen A with the James Webb Space Telescope" 9483:

Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016).

6685: 6646: 3152:(indicated at the edge of the map's reference disc), and according to their 2739: 14592: 14362: 14165: 14080: 13920: 13682: 13662: 13430: 13331: 13228: 12579: 12574: 12569: 12554: 12544: 12524: 12519: 12484: 12324: 12130: 11053:"A visionary project aims for Alpha Centauri, a star 4.37 light-years away" 10840:(Press release). Jet Propulsion Laboratory. 18 October 2006. Archived from 10198: 10163: 10069: 10022: 9803: 9681: 9662: 9526: 7717:. The Tenth Cambridge Workshop on Cool Stars, Stellar Systems and the Sun. 6625: 5419: 5146: 4203: 3819: 3755: 3732: 3673: 3565: 3526: 3369: 3337: 3240:. It is more magnetically active than Alpha Centauri A, showing a cycle of 2783:

in the southern sky. It will then pass just north of the Southern Cross or

2751: 2719:

as viewed from Earth, many stars appear behind it. In early May 2028,

2704: 2521: 2364: 2344: 1650: 1597: 1585:

which orbits very closely to the star, announced in 2022. The existence of

1465: 1004: 963: 788: 747: 10712:

Croswell, Ken (April 1991). "Does Alpha Centauri have intelligent life?".

8657: 6645:

Rajpaul, Vinesh; Aigrain, Suzanne; Roberts, Stephen J. (19 October 2015).

6318: 4138: 4103: 2615:

in 1915 by blinking photographic plates taken at different times during a

14356: 14160: 14145: 14137: 14097: 13611: 13293: 13288: 13283: 13278: 13273: 13268: 13263: 13258: 13253: 13248: 13243: 13238: 13233: 12853: 12843: 12798: 12675: 12670: 12665: 12660: 12655: 12539: 12514: 12509: 12272: 12162: 11897: 10631: 9354: 9096: 9039: 8986: 8868: 8726: 7742:

International Amateur-Professional Photoelectric Photometry Communication

6903: 5932: 5874: 5668: 5262: 5134: 4183: 3711: 3699: 3601: 3540: 3490: 3415: 3365: 3233: 3153: 3141: 2901: km), about the distance between the Sun and Pluto. The most recent 2836: 2780: 2669: 2494: 2454: 2368: 2319: 2268: 1786: 1613: 1424: 1352: 1084: 870: 641: 291: 280: 254: 243: 197: 145: 36: 11671: 11603:

van Leeuwen, Floor (2007). "Validation of the new Hipparcos reduction".

11588:

van Leeuwen, Floor (2007). "Validation of the new Hipparcos reduction".

10738: 10061: 9518: 6370: 3582:. Multiple observations every 3–6 months could push the limit down to 3 14150: 14035: 13713: 13672: 13667: 13657: 12953: 12943: 12938: 12928: 12918: 12858: 12838: 12833: 12828: 12755: 12650: 12645: 12640: 12635: 12630: 12612: 12607: 12602: 12597: 5487: 5463: 5449: 4422: 4340: 4167: 4116: 4031: in this section. Unsourced material may be challenged and removed. 3939: 3884: 3879: 3858:

system, Proxima Centauri may have influenced the planetary disk as the

3759: 3736: 3500: 3420: 3350: 3341: 3237: 3236:

varies on a short time scale, and there has been at least one observed

3149: 3077: 2812: 2796: 2768: 2549: 2478: 2473:

that I could perceive in all those parts which are never seene here in

2376: 2287: 1480: 1398: 977: 801: 761: 684: 514: 396: 301: 7800:

Linsky, Jeffrey L.; Redfield, Seth; Tilipman, Dennis (November 2019).

7044: 5496:

is for a planet at the outer edge of the conservative habitable zone,

3954:. The total mass was estimated to be between 10 to 10 the mass of the 2873:, as it has an eccentricity of almost 0.52; their closest approach or 1439:

of −0.27 . It is the brightest star in the constellation and the

14504: 14491: 14432: 14344: 14331: 14266: 14216: 14086: 14052: 14023: 13881: 13579: 13519: 13425: 13215: 13131: 13126: 13121: 13116: 13111: 13106: 13101: 13096: 13091: 13086: 13081: 13076: 13071: 13066: 13061: 13056: 13051: 13046: 13041: 13036: 13031: 13026: 12998: 12993: 12988: 12983: 12978: 12973: 12968: 12963: 12958: 12948: 12933: 12923: 12913: 12908: 12903: 12898: 12893: 12888: 12883: 12878: 12873: 12863: 12848: 12823: 12818: 12813: 12808: 12803: 12793: 12788: 12750: 12745: 12740: 12695: 12289: 12232: 12184: 8906: 8583:

C.A.L., Bailer-Jones (2015). "Close encounters of the stellar kind".

8463:

Kervella, Pierre; et al. (2016). "Close stellar conjunctions of

5566:

Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction".

5174: 4427: 4368: 4155: 3867: 3835: 3715: 3267: 3205: 2925:

occurred during February 1976, and the next will be in January 2056.

2716: 2602: 2486: 2372: 2307: 2220: 2216: 1827: 1675: 1658: 1654: 1582: 1526: 1444: 1432: 111: 32: 28: 11388: 11322: 8309: 8208:"Sixth Catalogue of Orbits of Visual Binary Stars: Ephemeris (2008)" 6908:

Tabulae Long. ac Lat. Stellarum Fixarum ex Observatione Ulugh Beighi

4006: 2347:

or "flare star" can unexpectedly brighten rapidly by as much as 0.6

14287: 14247: 14211: 14198: 14064: 14011: 13982: 13970: 13953: 13754: 13749: 13641: 13636: 13631: 13626: 13621: 13616: 13606: 13601: 13586: 13574: 13569: 13564: 13559: 13554: 13549: 13544: 13539: 13534: 13529: 13524: 13514: 13509: 13504: 13499: 13445: 13440: 13394: 13379: 13374: 13369: 13364: 13359: 13354: 13349: 13344: 13313: 13157: 13021: 13016: 12245: 12206: 11248: 10533: 10467: 10411: 10180: 9985: 9919: 9758: 9565: 9501: 9407: 9242: 8829: 8538: 8492: 8157: 8132: 7829: 7229: 7204: 7036: 6667: 6588: 6530: 6478: 6415: 6247: 6039: 5891: 5814: 5744: 5719: 5278: 5154: 4132: 3887:

might be disrupted enough to increase the number of active comets.

3839: 3186: 2543: 2462: 2409: 1483:

with an orbital period of 79 years. Their elliptical orbit is

1412: 1169: 948: 10931: 10786: 10684: 10492:

Miniature Space Telescope Could Boost the Hunt for "Earth Proxima"

10450: 10336: 9298: 9284:

Ayres, Thomas R. (March 2014). "The Ups and Downs of α Centauri".

8931: 8812: 8597: 7887: 7414: 6572:"Imaging low-mass planets within the habitable zone of α Centauri" 6457:

Faria, J. P.; Suárez Mascareño, A.; et al. (4 January 2022).

6456: 6137: 6082: 5580: 4356:(ESO) in August 2016, would be a target for the Starshot program. 2763:

Based on the system's common proper motion and radial velocities,

2453:, and it can no longer be seen at that latitude. English explorer 14226: 14114: 14075: 14046: 13964: 13435: 13339: 13223: 13192: 13187: 13182: 13162: 12868: 12705: 11946: 11496:

van Altena, W.F.; Lee, J.T.; Hoffleit, E.D. (1995). "GCTP 3309".

10831:

This article incorporates text from this source, which is in the

10108:"It turns out the closest exoplanet to us doesn't actually exist" 9482: 8530: 8201:

This article incorporates text from this source, which is in the

6782:

Islamicate Celestial Globes: Their history, construction, and use

6359:

This article incorporates text from this source, which is in the

4218: 4120: 3823: 2820: 2668:

found that some stars had significantly moved from their ancient

2474: 2430: 2360: 2283: 2244: 2160: 2136: 1546: 1545:(0.21 ly), equivalent to about 430 times the radius of 1452: 97: 90: 13783: 12318: 11762: 11426:

Woolley, R.; Epps, E. A.; Penston, M. J.; Pocock, S. B. (1970).

9077: 3653:

The first claim of a planet around Alpha Centauri B was that of

3639:. It is therefore likely within the reach of JWST observations. 2747:

from 20,000 years ago until 80,000 years in the future

2664:, as stated in the works of the philosopher Aristotle. In 1718, 74:

system), circled in red. The bright star system to the right is

14309: 13744: 13482: 13468: 13460: 13450: 13412: 13167: 13152: 12760: 12093: 7286:. Star Names (Report). IAU Working Group on Star Names (WGSN). 6016: 5977: 4417: 4242: 4230: 4206:, the "W" line of stars of Cassiopeia would have a "/W" shape. 4198:. With the placement of the Sun east of the magnitude 3.4 star 4190:+60° 50′ 02.308″ (2000), in eastern 4112: 3827: 3751:

Radial velocity measurements of Alpha Centauri B made with the

3482: 2824: 2808: 2696: 2516:

The large proper motion of Alpha Centauri AB was discovered by

2380: 2295: 2240: 1512: 1448: 1435:, these two main components appear to be a single star with an 1402: 1276: 1076: 990: 862: 774: 519: 401: 12023: 10669: 10379: 9799:"Astronomers' hopes raised by glimpse of possible new planet?" 9630:

Damasso, Mario; Del Sordo, Fabio; et al. (January 2020).

9597: 8907:

Bazot, M.; Bourguignon, S.; Christensen-Dalsgaard, J. (2012).

8853: 6459:"A candidate short-period sub-Earth orbiting Proxima Centauri" 5789: 5261:

This is calculated for a fixed latitude by knowing the star's

3200:

on Alpha Centauri A is comparable to that of the Sun, showing

2115:, refers to an asterism consisting of Alpha Centauri and 1875: 1708: 11389:"Parallax of α Centauri from Meridian Observations 1879–1881" 10910: 9899: 9550: 9227: 7057: 5915: 5651: 5414:

These mass limits are calculated from the observed radius of

5166: 4246: 3831: 3229: 2961:

years, with an eccentricity of 0.5, much more eccentric than

2906: 2902: 2888: 2874: 2510: 2506: 2498: 2417:, but texts differ as to whether the ecliptic latitude reads 2315: 1738: 1498: 1487:, so that the distance between A and B varies from 35.6 544: 10320:"Planet formation in the habitable zone of alpha centauri B" 10161: 10133:"Poof! The planet closest to our Solar system just vanished" 9606:"A Second Planet May Orbit Earth's Nearest Neighboring Star" 8352:. Astronomical Society of South Africa. 2008. Archived from 4302:

but still 470–5,700 times brighter than the full Moon.

2325:

As seen from Earth, Proxima Centauri is 2.2° southwest from

2061: 1967: 1895: 12420: 9965: 9697:"A Moving Target — Revising the Mass of Proxima Centauri c" 8018: 6175: 5162: 4359: 4238: 3955: 3917: 3441: 3220:"Alpha Centauri B" redirects here. Not to be confused with 3156:. The second mark shows each's distance from Sol, with the 2928:

Alpha Centauri C is about 13,000 AU (0.21 ly; 1.9

2784: 2334: 2260: 2259:(Hadar/Agena), some 4.5° west, points to the constellation 2076: 2067: 2055: 1970: 1955: 1947: 1898: 1883: 1869: 1719: 1702: 586: 483: 471: 365: 353: 14587: 11475:

Preliminary Version of the Third Catalogue of Nearby Stars

10286:"Nearby star should harbor detectable, Earth-like planets" 10253:"Why haven't planets been detected around Alpha Centauri?" 10020: 9623: 9476: 9024: 7712: 7372:

Atlas: Designed to illustrate the geography of the heavens

5505:, and so the upper mass limit is lower than that for the C 3589:. Post-processing techniques could push the limit down to 3406:. This planet, Proxima Centauri d, was confirmed in 2022. 2477:. The first of these is that bright Star in the sterne of 2002: 1932: 1872: 1705: 12119: 11498:

The General Catalogue of Trigonometric Stellar Parallaxes

10435: 9462: 8255:[On the Heavens]. Book II Part 11. Archived from 7869: 6631:

Kevin Wagner's (lead author of paper?) video of discovery

4154:

would appear much as it does from the Earth, except that

3465: 2058: 2052: 2014: 2008: 1941: 1394: 1118: 904: 66:

Alpha Centauri AB (left) forms a triple star system with

11425: 11325:[Determining the parallax of α and β Centauri]. 10512: 8394:

Maclear, M. (1851). "Determination of parallax of α and

6569: 4305:

Proxima Centauri would appear dim as one of many stars.

3076:, the total mass of Alpha Centauri AB is about 2.0 2771:, α Centauri's true motion will cause an extremely rare 11081:"How long would it take to travel to the nearest star?" 10765: 9907:

Publications of the Astronomical Society of the Pacific

9743: 7117:(October 1915). "A faint star of large proper motion". 7019:

Hermelink, H.; Kunitzsch, Paul (1961). "Reviewed work:

6515: 4331:

Alpha Centauri is a first target for crewed or robotic

2481:

which they call Canobus . The second is in the end of

2429:, but it has decreased by a fraction of a degree since 1834:

later became more widely used and is now listed by the

1537:. Currently, the distance between Proxima Centauri and 11727: 11216:"NASA has begun plans for a 2069 interstellar mission" 10579: 10577: 9695:

Benedict, G. Fritz; McArthur, Barbara E. (June 2020).

8644:

Calculation based on computations from HIPPARCOS data.

7799: 7058:

ibn Muḥammad al-Fargānī, Aḥmad; Golius, Jakob (1669).

6317:

Kervella, Pierre; Thevenin, Frederic (15 March 2003).

3255: 3160:

circles indicating the distance in steps of 1 ly.

2437:.) In Ptolemy's time, Alpha Centauri was visible from 1765:), meaning 'the (two male) Ostriches', an appellation 14564: 11495: 11181:"One star over, a planet that might be another Earth" 10610: 10317: 10247: 10245: 9392: 9386: 8126: 8124: 7182:. Oxford, UK: Oxford University Press. p. 1431. 6882:. Springer Science & Business Media. p. 15. 6644: 6396: 5528: 5309: 5149:

culture of Australia, Alpha Centauri represents with

4194:, easily outshining all the rest of the stars in the 2787:, before moving northwest and up towards the present 2623:

which suggested that Proxima Centauri is part of the

2017: 1958: 1952: 1938: 1935: 1901: 1886: 1880: 1722: 1716: 27:"α Centauri" redirects here. Not to be confused with 11619:"Alpha Centauri, the star system closest to our sun" 11500:(Report) (4th ed.). Yale University Observatory 9339: 7506:

Unveiling the Universe: An introduction to astronomy

6722: 6720: 6718: 6709:"Alpha Centauri, the star system closest to our sun" 6350: 6348: 6346: 6344: 6342: 6340: 6062:

Bazot, M.; et al. (2007). "Asteroseismology of

4166:+0.5, roughly the same as the average brightness of 3946:, which may be interpreted as evidence for a sparse 2541:

released his own accurately determined parallax for

2213:

brightest in the southern constellation of Centaurus

2064: 2049: 2005: 1999: 1964: 1929: 1926: 1892: 1866: 1725: 1699: 11535: 11512: 10761: 10759: 10574: 10515:"Planet detectability in the Alpha Centauri system" 8690:

Washington Visual Double Star Catalog, 1996.0 (WDS)

8558:

Quarterly Journal of the Royal Astronomical Society

8044: 8042: 7863: 7562:. Longman Scientific and Technical. pp. 39–40. 6565: 6563: 6561: 6559: 4142:Simulated night-sky image with a "W" of stars from 3993:, and a small part of B's outer disc just outside. 3620:. Candidate 1 has an estimated radius between 2690:Calculated proper motion of the centre of mass for 2046: 2011: 1996: 1961: 1944: 1923: 1889: 1863: 1713: 1696: 1686:(Kentaurus). The name is frequently abbreviated to 13735: 12039: 11660:"Sixth Catalogue of Orbits of Visual Binary Stars" 10431: 10429: 10242: 9737: 8793: 8284:. Creative Media Partners, LLC. pp. 357–358. 8121: 7740:Page, A.A. (1982). "Mount Tamborine Observatory". 7642:Southern Astronomical Delights (southastrodel.com) 7560:Norton's 2000.0: Star Atlas and Reference Handbook 7503: 7018: 6906:(1665). "Ulugh Beighi Tabulae Stellarum Fixarum". 5393: 12073: 12055: 11152:"Reaching for the stars, across 4.37 light-years" 10324:Monthly Notices of the Royal Astronomical Society 10313: 10311: 10223:"Twin Earths may lurk in our nearest star system" 10168:Monthly Notices of the Royal Astronomical Society 9546: 9544: 9128: 8918:Monthly Notices of the Royal Astronomical Society 8649: 8314:Monthly Notices of the Royal Astronomical Society 7984:Monthly Notices of the Royal Astronomical Society 7678:Monthly Notices of the Royal Astronomical Society 7538:Hartung, E.J.; Frew, David; Malin, David (1994). 6715: 6655:Monthly Notices of the Royal Astronomical Society 6337: 6229:and B using empirical mixing length calibrations" 5165:culture it with Beta Centauri form the eyes of a 3958:, or 10–100 times the mass of the Solar System's 2819:of −0.86, comparable to present-day magnitude of 14624: 11908: 11172: 11144: 11041: 10756: 10583: 10035:"An Earth mass planet orbiting Alpha Centauri B" 9694: 9629: 8303: 8301: 8039: 8012: 7980:, and the origin of the southern constellations" 7721:Conference Series. Vol. 154. p. 1212. 7575: 7537: 6556: 6319:"A family portrait of the Alpha Centauri system" 6316: 4388:Alpha Centauri AB historical distance estimates 4380: 3916:were among the listed "Tier-1" target stars for 3357:from Proxima Centauri, placing it in the star's 2980:of AB at periastron, and its apastron occurs at 11432:Catalogue of Stars within 25 Parsecs of the Sun 11323:"Bestimmung der Parallaxe von α und β Centauri" 10906: 10904: 10902: 10900: 10766:Kaltenegger, Lisa; Haghighipour, Nader (2013). 10426: 9818: 9688: 8971: 8458: 8456: 8454: 8130: 7773:American Association of Variable Star Observers 7667: 7245:Bulletin of the IAU Working Group on Star Names 6392: 6390: 6388: 6031:Stars and Their Variability Observed from Space 5173:embedded in the band of stars that the visible 3758:were sufficiently sensitive to detect a 4 3600:Post-launch estimates based on observations of 1748:An alternative name found in European sources, 13704: 12393: 10318:Thebault, P.; Marzazi, F.; Scholl, H. (2009). 10308: 9541: 8686: 7402:Journal of Astronomical History & Heritage 7149:Circular of the Union Observatory Johannesburg 7119:Circular of the Union Observatory Johannesburg 6726: 6640: 6638: 6524:. 164:84 (3) (published 8 August 2022): 18pp. 6511: 6509: 6507: 5717: 4362:released a mission concept in 2017 that would 3905:, the habitable zone is between about 0.7 and 3642: 3409: 3307: 42:"Toliman" redirects here. For other uses, see 13799: 12379: 12009: 11831: 11817: 11776:"Nearest star system might harbor Earth twin" 11468: 10375: 10373: 9279: 9277: 9221: 9071: 8849: 8847: 8298: 8094: 8055:(reprint ed.). Dover. pp. 345–346. 8021:Bulletin of the Astronomical Society of India 7557: 7470: 7468: 7455:Transactions Philosophical Institute Victoria 6920: 6364: 6222: 5859: 5785: 5783: 5713: 5711: 3753:High Accuracy Radial Velocity Planet Searcher 2909:was in May 1995 and will next occur in 2075. 2367:, and its nearest known system is the binary 2124: 2101: 1737:, though the latter name is better known for 1629: 204:−60° 50′ 15.0992″ 152:−60° 50′ 02.3737″ 13330: 11546:(Report). The Hipparcos and Tycho Catalogues 11523:(Report). The Hipparcos and Tycho Catalogues 11419: 11124: 11122: 10897: 10718:. Vol. 19, no. 4. pp. 28–37. 10707: 10705: 10703: 10672:Revista Mexicana de Astronomía y Astrofísica 10016: 10014: 9135:Kim, Y-C. (1999). "Standard stellar models; 8451: 7760: 7579:Astronomical Objects for Southern Telescopes 7540:Astronomical Objects for Southern Telescopes 7399: 6778: 6452: 6450: 6385: 6367:"Sixth Catalog of Orbits of Visual Binaries" 6114: 5781: 5779: 5777: 5775: 5773: 5771: 5769: 5767: 5765: 5763: 5718:Valenti, Jeff A.; Fischer, Debra A. (2005). 5647: 5645: 5643: 4233:lying less than a degree from Betelgeuse in 3989:This would put A's disc entirely within the 3962:. If such a disc existed around both stars, 3685:. If confirmed, this planet might be called 3556:GO Cycle 1 observations are planned for the 3173:star with a similar yellowish colour, whose 2231:Apparent magnitude § Magnitude addition 1803: 1798: 1753: 1666: 1665:is a Latinisation of the Arabic translation 1552:Proxima Centauri has two confirmed planets: 12271: 11602: 11587: 11462: 11078: 10871:. Archived from the original on 4 June 2011 10155: 9203:Australia Telescope, Outreach and Education 8551: 8549: 7706: 7582:. Melbourne University Press. p. 194. 7576:Hartung, E.J.; Frew, D.; Malin, D. (1994). 7553: 7551: 7549: 7395: 7393: 7237: 7196: 6635: 6504: 6169: 6028: 5724:The Astrophysical Journal Supplement Series 5565: 5561: 5559: 5557: 5555: 5553: 5551: 5527:Weighted parallax based on parallaxes from 4364:send a spacecraft to Alpha Centauri in 2069 4245:would be shifted northwestward relative to 3127: 2916:of A and B means that their separation and 2734: 2084: 1797:is Golius' latinisation of the Arabic name 1682:is the Arabic transliteration of the Greek 1608:away discovered in 2019, is controversial. 14718:Astronomical objects known since antiquity 13806: 13792: 12386: 12372: 12151:K-type main-sequence star B (Toliman) 12016: 12002: 11824: 11810: 11769:(in Portuguese). Associação de Astronomia. 11564: 10482: 10370: 9274: 9164: 9162: 9141:Journal of the Korean Astronomical Society 8844: 8576: 8474:= 7.8 star may enter the Einstein ring of 8437:. Translated by Raven-Hart, R. Cape Town. 7925: 7668:Matthews, R.A.J.; Gilmore, Gerard (1993). 7465: 7452: 7446: 7314: 7312: 7167: 5973: 5971: 5969: 5967: 5708: 5532: 3228:Alpha Centauri B emits more energy in the 2485:. The third is in the right foote of the 16:Star system in the Centaurus constellation 13214: 11362:Memoirs of the Royal Astronomical Society 11359: 11296:Memoirs of the Royal Astronomical Society 11269:Memoirs of the Royal Astronomical Society 11262: 11119: 11099: 10930: 10803: 10785: 10700: 10683: 10630: 10550: 10532: 10506: 10449: 10401: 10353: 10335: 10197: 10179: 10011: 10002: 9984: 9918: 9757: 9720: 9671: 9661: 9564: 9500: 9406: 9353: 9335: 9333: 9297: 9241: 9193: 9191: 9095: 9038: 8985: 8948: 8930: 8909:"A Bayesian approach to the modelling of 8867: 8811: 8725: 8596: 8537: 8491: 8366: 8333: 8307: 8250: 8174: 8172: 8170: 8168: 8156: 8048: 8003: 7886: 7846: 7828: 7697: 7663: 7661: 7659: 7533: 7531: 7529: 7527: 7413: 7228: 7173: 7137: 7107: 6975: 6820:Memoirs of the Royal Astronomical Society 6684: 6666: 6647:"Ghost in the time series: No planet for 6615: 6605: 6587: 6547: 6529: 6495: 6477: 6447: 6414: 6264: 6246: 6207: 6136: 6081: 6038: 6022: 5931: 5873: 5855: 5853: 5851: 5831: 5813: 5760: 5743: 5667: 5640: 5579: 5277:declination is −60° 50′, so the observed 5137:have been using Alpha Centauri for their 4091:Learn how and when to remove this message 2627:system and slightly closer to Earth than 1653:in 1603. It belongs to the constellation 11773: 11541: 11518: 10820: 10711: 10283: 9603: 8965: 8789: 8787: 8711: 8705: 8555: 8546: 8462: 8210:. U.S. Naval Observatory. Archived from 8131:Kamper, K. W.; Wesselink, A. J. (1978). 8100: 7571: 7569: 7546: 7390: 7273: 7025:Journal of the American Oriental Society 6797: 6795: 6760:. Vol. 52, no. 3. p. 16. 6753: 6369:. U.S. Naval Observatory. Archived from 6120: 5911: 5909: 5792:"Precision millimeter astrometry of the 5623: 5621: 5619: 5617: 5615: 5548: 4312: 4137: 4102: 3996: 3419: 3328:Proxima Centauri § Planetary system 3288: 3131: 3005: 2859: 2823:, but it will still not surpass that of 2750: 2738: 2638: 2558: 2390: 2386: 2318:), but only for a short time around its 2132:, the Second Star of the Southern Gate. 14713:Astronomical objects discovered in 1689 12026:Celestial objects within 10 light-years 11386: 11293: 11263:Henderson, T. (1842). "The parallax of 11047: 10995: 10736: 9455:"Proxima Centauri UV flux distribution" 9159: 9018: 8900: 8680: 8393: 7501: 7368: 7337: 7309: 6957:Lane, Edward William (ed.). "zalim dh" 6286: 6284: 5964: 3692: 1423:, respectively) that together form the 463: 345: 14625: 13411: 12229:2 (3?) planets: b, d?, c 11320: 10998:"Alpha Centauri and the new astronomy" 10862: 9845: 9843: 9796: 9330: 9188: 8655: 8582: 8178: 8165: 8077:"Best image of Alpha Centauri A and B" 7970: 7964: 7656: 7602: 7558:Norton, A.P.; Ridpath, Ed. I. (1986). 7524: 7078: 6292:IAU Working Group on Star Names (WGSN) 6055: 5848: 5627: 3933: 3429:The Alpha Centauri A planetary system 3001: 2799:, in the present-day constellation of 2715:is almost exactly in the plane of the 2425:. (Presently the ecliptic latitude is 2329:this distance is about four times the 2185: 13787: 12367: 12332: 12280: 11997: 11856: 11848: 11805: 11704:"Immediate history of Alpha Centauri" 11178: 10865:"Rage Against the Dying of the Light" 9283: 9176:from the original on 12 November 2007 8784: 8764: 8687:Worley, C.E.; Douglass, G.G. (1996). 8432: 8277: 8271: 7566: 7502:van Zyl, Johannes Ebenhaezer (1996). 7474: 7202: 7143: 7113: 6875: 6852:Universe: The definitive visual guide 6816: 6792: 6472:. European Southern Observatory: 17. 6216: 6061: 5906: 5612: 4308: 2855: 2255:, so called because the line through 11213: 10969: 10488: 10105: 9447: 9170:The one hundred nearest star systems 8373:. Courier Corporation. p. 333. 7739: 6944:Planetario Movel Inflavel AsterDomus 6902: 6848: 6727:Kunitzsch, Paul; Smart, Tim (2006). 6281: 6178:"Chandra-LETGS X-ray observation of 4029:adding citations to reliable sources 4000: 3942:(mid/far-infrared) band surrounding 3830:were probably crucial in perturbing 3668:of planet Bb was conducted with the 2530:Royal Observatory, Cape of Good Hope 2469:Now, therefore, there are but three 1752:, is an approximation of the Arabic 93: 11728:Hypothetical planets or exploration 11450:from the original on 8 October 2017 11100:Domonoske, Camila (12 April 2016). 10739:"Proxima Centauri and habitability" 10087:from the original on 9 October 2022 9840: 9134: 7952:from the original on 9 October 2022 7640:. The Constellations, Part 2. 7607:The Penguin Dictionary of Astronomy 7297:from the original on 9 October 2022 7261:from the original on 9 October 2022 6941: 6365:Hartkopf, W.; Mason, D. M. (2008). 6182:A nearby (G2V + K1V) binary system" 6066:Evidence of rotational splitting". 3785:for Alpha Centauri B, and 0.5 3298: 3270:of spectral class M6-Ve. It has an 3256:Alpha Centauri C (Proxima Centauri) 3215: 3164: 2807:will reach perihelion at 0.90 2340:General Catalogue of Variable Stars 2274:South of about 29° South latitude, 1799: 1754: 1667: 475: 357: 13: 10265:from the original on 21 April 2008 9828:. International Astronomical Union 7670:"Is Proxima really in orbit about 6849:Rees, Martin (17 September 2012). 3539:In 2021, a candidate planet named 3124:of +4.38 and +5.71, respectively. 2965:'s. Proxima Centauri comes within 14: 14729: 14508:(Mars orbit insertion: Feb 2021; 14494:(Mars orbit insertion: Feb 2021; 13813: 11774:Thompson, Andrea (7 March 2008). 11640: 11179:Chang, Kenneth (24 August 2016). 10996:Gilster, Paul (16 October 2012). 10139:. 29 October 2015. Archived from 9973:The Astrophysical Journal Letters 8350:"Henderson, Thomas [FRS]" 8278:Berry, Arthur (6 February 2018). 8234:"High-Proper Motion Stars (2004)" 7635: 7432:10.3724/SP.J.1440-2807.2010.03.06 7369:Burritt, Elijah Hinsdale (1850). 6924:Crux Australis: o Cruzeiro do Sul 6801: 5311: 4343:technology, as considered in the 3353:) and orbits approximately 0.049 2830: 2359:Alpha Centauri may be inside the 2352:normal on 13 August, in the 2227:(combined for A and B magnitudes 2211:appears to be a single star, the 2143:in Australia, Alpha Centauri and 1818:, who suggested that it be named 1769:had applied to the pair of stars 1497:), or about the distance between 14610: 14598: 14586: 14574: 14539: 14538: 14527: 14488:(Mars orbit insertion: Feb 2021) 14400: 14127: 13910: 13904: 13898: 13847: 13770: 13769: 11978: 11977: 11881: 11876: 11611: 11596: 11581: 11558: 11489: 11469:Gliese, W.; Jahreiß, H. (1991). 11380: 11353: 11314: 11287: 11256: 11236: 11207: 11093: 11072: 11015: 10989: 10963: 10856: 10826: 10730: 10663: 10604: 10355:10.1111/j.1745-3933.2008.00590.x 10277: 10220: 10214: 10125: 10099: 9959: 9893: 9868: 9797:Sample, Ian (10 February 2021). 9790: 9082:including seismic constraints". 8950:10.1111/j.1365-2966.2012.21818.x 8196: 7349:International Astronomical Union 7324:International Astronomical Union 7288:International Astronomical Union 7252:International Astronomical Union 6956: 6354: 6296:International Astronomical Union 6223:Joyce, M.; Chaboyer, B. (2018). 5521: 5408: 5403:standard gravitational parameter 5298: 5231:is gravitationally bound to the 4005: 2679:discovered the true distance to 2395:View of Alpha Centauri from the 2184: 2177: 2042: 1992: 1919: 1859: 1836:International Astronomical Union 1692: 59: 11753:(in Portuguese). Archived from 11477:. Astronomische Rechen-Institut 11214:Wenz, John (19 December 2017). 10292:. UC Santa Cruz. Archived from 9604:Billings, Lee (12 April 2019). 8765:James, Andrew (11 March 2008). 8758: 8695:United States Naval Observatory 8629: 8524: 8426: 8387: 8360: 8342: 8310:"On the parallax of α Centauri" 8244: 8226: 8190: 8109:. Smith, Elder and Co, London. 8069: 7919: 7793: 7733: 7629: 7596: 7495: 7379: 7362: 7072: 7051: 7012: 6969: 6950: 6935: 6914: 6910:. Oxford, UK. pp. 142, 67. 6896: 6869: 6842: 6810: 6772: 6747: 6701: 6310: 6013:Alpha Centauri's database entry 5390: 5288: 5255: 5238: 4253:a more equilateral appearance. 4217:, but very thin and long, with 4170:from Earth. It would be at the 4107:Looking towards the sky around 4016:needs additional citations for 3966:disc would likely be stable to 2354:B band (blue light region) 1211:: Rigil Kentaurus, Rigil Kent, 22:Alpha Centauri (disambiguation) 14698:Henry Draper Catalogue objects 14668:Hypothetical planetary systems 14373:(rapidly-rotating brown dwarf) 13390:Scorpius–Centaurus association 12411:Centaurus in Chinese astronomy 12161:2 (5?) planets: 11542:Perryman; et al. (1997). 11519:Perryman; et al. (1997). 11023:"The view from Alpha Centauri" 10972:"See the Sun from other stars" 10863:Mullen, Leslie (2 June 2011). 10590:. Springer. pp. 265–284. 10587:Planets in Binary Star Systems 10284:Stephens, Tim (7 March 2008). 10106:Wenz, John (29 October 2015). 7174:Stevenson, Angus, ed. (2010). 7079:Schaaf, Fred (31 March 2008). 7021:Arabische Sternnamen in Europa 6876:Kaler, James B. (7 May 2006). 6855:. DK Publishing. p. 252. 5960:. libcode 2005astro.ph.12219G. 5222: 3140:map of all stellar objects or 3120:. Alpha Centauri A and B have 3057:whereas gyrochronology yields 2779:, forming a brilliant optical 2170: 2031: 1511:or about the distance between 1363:. It consists of three stars: 1: 14708:Bright Star Catalogue objects 12056:Celestial objects by systems. 10970:King, Bob (2 February 2022). 10737:Gilster, Paul (5 July 2006). 7926:Ptolemaeus, Claudius (1984). 7768:"Light curve generator (LCG)" 7542:. Cambridge University Press. 6804:Star Names and their Meanings 6779:Savage-Smith, Emilie (1985). 6323:European Southern Observatory 5542: 5124: 4381:Historical distance estimates 4354:European Southern Observatory 3778:for Alpha Centauri A, 8 3372:. It has a mass of roughly 7 3334:European Southern Observatory 2634: 2123:for Alpha Centauri itself is 1620:has no known planets: Planet 498:750.81 ± 0.38 380:750.81 ± 0.38 14554:Category:2022 in outer space 14549:Category:2021 in outer space 14544:Category:2020 in outer space 12216:1? planets: b? 12094:Sirius (Alpha Canis Majoris) 11692:"A voyage to Alpha Centauri" 11079:O'Neill, Ian (8 July 2008). 10918:Astronomy & Astrophysics 10618:Astronomy & Astrophysics 9746:Astronomy & Astrophysics 9553:Astronomy & Astrophysics 9459:The Astronomical Data Centre 9395:Astronomy & Astrophysics 9230:Astronomy & Astrophysics 9084:Astronomy & Astrophysics 9027:Astronomy & Astrophysics 8974:Astronomy & Astrophysics 8856:Astronomy & Astrophysics 8480:Astronomy & Astrophysics 8433:N. L., de la Caillé (1976). 8281:A Short History of Astronomy 8133:"Alpha and Proxima Centauri" 7475:Moore, Patrick, ed. (2002). 7205:"Alpha and Proxima Centauri" 7180:Oxford Dictionary of English 6466:Astronomy & Astrophysics 6403:Astronomy & Astrophysics 6187:Astronomy & Astrophysics 3922:Space Interferometry Mission 3481: 3476: 3471: 3458: 3445: 3440: 3433: 2755:Animation showing motion of 2471:Stars of the first magnitude 1982:On 10 August 2018, the 7: 11942:2069 Alpha Centauri mission 11648:"SIMBAD observational data" 10949:10.1051/0004-6361/201321887 10838:"Planet hunting by numbers" 10805:10.1088/0004-637X/777/2/165 9776:10.1051/0004-6361/202037594 9583:10.1051/0004-6361/202037745 9425:10.1051/0004-6361/201629930 9260:10.1051/0004-6361/201629505 8615:10.1051/0004-6361/201425221 8510:10.1051/0004-6361/201629201 7978:Catalogue of Southern Stars 7976:"On Frederick de Houtman's 7905:10.1051/0004-6361/201322975 6497:10.1051/0004-6361/202142337 6433:10.1051/0004-6361/201629930 6155:10.1088/0004-637X/796/2/133 6001:10.1051/0004-6361/202347136 5269:) using the formulae (90°+ 5188: 4327:2069 Alpha Centauri mission 3822:, it was once thought that 3805:both Alpha Centauri A and B 3643:Planets of Alpha Centauri B 3410:Planets of Alpha Centauri A 3336:(ESO). It has an estimated 3308:Planets of Proxima Centauri 2597:calculated the approximate 2570: G2 as the Sun, while 2228: 1847:Working Group on Star Names 1804: 1389:). Proxima Centauri is the 10: 14734: 14648:M-type main-sequence stars 14643:K-type main-sequence stars 14638:G-type main-sequence stars 13889:James Webb Space Telescope 12406:List of stars in Centaurus 12395:Constellation of Centaurus 12242:red dwarf B (UV Ceti) 11747:"O sistema Alpha Centauri" 11132:. Breakthrough Initiatives 10649:10.1051/0004-6361:20021357 9851:"1618 Program Information" 9372:10.1051/0004-6361:20053314 9342:Astronomy and Astrophysics 9316:10.1088/0004-6256/147/3/59 9114:10.1051/0004-6361:20034203 9057:10.1051/0004-6361:20030244 9004:10.1051/0004-6361:20052988 8886:10.1051/0004-6361:20021074 8744:10.1051/0004-6361:20020287 8714:Astronomy and Astrophysics 8642:. April 1998. p. 60. 8585:Astronomy and Astrophysics 8186:. Dover. pp. 235–237. 8049:Pannekoek, Anton (1989) . 7874:Astronomy and Astrophysics 7603:Mitton, Jacquelin (1993). 6998:10.1515/islm.1975.52.2.263 6879:The Hundred Greatest Stars 6607:10.1038/s41467-021-21176-6 6209:10.1051/0004-6361:20021899 6100:10.1051/0004-6361:20065694 6069:Astronomy and Astrophysics 5981:Astronomy and Astrophysics 5950:10.1051/0004-6361:20053850 5919:Astronomy and Astrophysics 5686:10.1051/0004-6361:20065602 5655:Astronomy and Astrophysics 5598:10.1051/0004-6361:20078357 5568:Astronomy and Astrophysics 4324: 3980:would likely be stable to 3646: 3558:James Webb Space Telescope 3413: 3325: 3311: 3259: 3219: 2574:(right) is a K1-type star. 2247:. It is the outer star of 1814:was discovered in 1915 by 1630:Etymology and nomenclature 18: 14522: 14473: 14455:(Bernardinelli-Bernstein) 14398: 14296: 14123: 13948:Asteroid close approaches 13937: 13919: 13896: 13841: 13819: 13767: 13731: 13700: 13650: 13490: 13481: 13407: 13326: 13210: 13140: 13007: 12779: 12621: 12588: 12428: 12419: 12401: 12314: 12299:T-type brown dwarf B 12267: 12183: 12110: 12084: 12069: 12054: 12035: 11970: 11935:Proposed mission concepts 11934: 11890: 11874: 11841: 11393:Astronomische Nachrichten 11387:Roberts, Alex W. (1895). 11327:Astronomische Nachrichten 10974:. Explore the Night Sky. 10889:: CS1 maint: unfit URL ( 10773:The Astrophysical Journal 10674:. Serie de Conferencias. 9701:Research Notes of the AAS 8400:Astronomische Nachrichten 8367:Pannekoek, Anton (1989). 8238:Hipparcos mission website 7817:The Astrophysical Journal 7644:. Sydney, New South Wales 7611:. Penguin Books. p. 7345:IAU Catalog of Star Names 7203:Alden, Harold L. (1928). 6963:An Arabic–English Lexicon 6234:The Astrophysical Journal 6124:The Astrophysical Journal 5195:Alpha Centauri in fiction 4982: 4979: 4411: 4408: 4401: 4398: 4395: 4392: 4373:Even at speed 10% of the 4202:, nearly in front of the 4158:'s brightest star, being 4111:from Alpha Centauri with 2775:stellar conjunction with 2685:Nicolas Louis de Lacaille 2461:, along with Canopus and 2449:, its declination is now 2343:, version 4.2, this 2239:and is fainter only than 2125: 2102: 1909:) as being restricted to 1761:(in older transcription, 1674:meaning "the Foot of the 1269: 1242: 1207: 1182: 1175: 954: 738: 733: 543: 425: 307: 300: 263: 226: 221: 169: 117: 84: 57: 14465:P/2021 U3 (Attard-Maury) 14416:C/2021 J1 (Maury-Attard) 12726:V816 (Przybylski's Star) 11413:10.1002/asna.18961391202 11347:10.1002/asna.18680710802 10552:10.3847/1538-3881/aa9bea 10500:(scientificamerican.com) 10137:National Geographic News 10004:10.3847/2041-8213/acd93e 9937:10.1088/1538-3873/ab5066 9722:10.3847/2515-5172/ab9ca9 9286:The Astronomical Journal 8420:10.1002/asna.18510321606 7848:10.3847/1538-4357/ab498a 7290:. 2015–2018. p. 5. 6958: 6549:10.3847/1538-3881/ac7ce6 6522:The Astronomical Journal 6266:10.3847/1538-4357/aad464 5862:The Astronomical Journal 5833:10.3847/1538-3881/abfaff 5801:The Astronomical Journal 5529:van Altena et al. (1995) 5215: 4337:nuclear pulse propulsion 4333:interstellar exploration 3128:Alpha Centauri AB System 3021:, and stellar rotation ( 2735:Predicted future changes 2727:will be observed. Other 1570:discovered in 2016, and 44:Toliman (disambiguation) 14678:Stars with proper names 14515:Mars landing: May 2021) 14500:Mars landing: Feb 2021) 12140:α Cen (Rigil Kentaurus) 11778:. Science / Astronomy. 11735:"Alpha Centauri system" 11224:. Kingston Acquisitions 10941:2014A&A...563A.102W 10641:2002A&A...396..219B 9768:2020A&A...638A.120G 9575:2020A&A...639A..77S 9417:2017A&A...598L...7K 9364:2005A&A...442..315R 9252:2017A&A...597A.137K 9106:2004A&A...417..235E 9049:2003A&A...402..293T 8996:2005A&A...441..615M 8878:2002A&A...392L...9T 8736:2002A&A...386..280P 8607:2015A&A...575A..35B 8502:2016A&A...594A.107K 7897:2014A&A...561L...4B 6733:. Sky Pub. p. 27. 6488:2022A&A...658A.115F 6425:2017A&A...598L...7K 6200:2003A&A...400..671R 6092:2007A&A...470..295B 5993:2024A&A...682A.145S 5942:2006A&A...449..723G 5678:2006A&A...460..695T 5590:2007A&A...474..653V 4256:A planet around either 3874:(or vice versa), or if 3815:on a potential planet. 2912:Viewed from Earth, the 2795:. By about 26,700 2383:) from Alpha Centauri. 2235:), Alpha Centauri is a 2139:people of northwestern 2089:'hoof', originally for 1826: 'the nearest of 1468:and 1.5 times the 1464:has 1.1 times the 529:Absolute magnitude 411:Absolute magnitude 211:Apparent magnitude 159:Apparent magnitude 14688:Durchmusterung objects 14534:Outer space portal 13858:Tiangong space station 11751:uranometrianova.pro.br 11321:Moesta, C. G. (1868). 9826:"Naming of Exoplanets" 9663:10.1126/sciadv.aax7467 8656:Heintz, W. D. (1978). 8370:A History of Astronomy 8335:10.1093/mnras/4.19.168 8308:Henderson, H. (1839). 8052:A History of Astronomy 8005:10.1093/mnras/77.5.414 7699:10.1093/mnras/261.1.l5 7478:Astronomy Encyclopedia 7085:. Wiley. p. 122. 6921:da Silva Oliveira, R. 5395: 4322: 4147: 4135: 3842:(D/H) ratio in comets 3744:in Alpha Centauri B's 3670:Hubble Space Telescope 3425: 3294: 3175:stellar classification 3161: 3019:chromospheric activity 3011: 2866: 2852:gravitational object. 2843:designation, or older 2760: 2748: 2648: 2595:William Stephen Finsen 2575: 2566:(left) is of the same 2491: 2400: 2085: 713:Argument of periastron 518:(1.3319 ± 0.0007 400:(1.3319 ± 0.0007 14693:Gliese and GJ objects 14379:(massive white dwarf) 12233:Gliese 65 A (BL Ceti) 11952:Breakthrough Starshot 10869:Astrobiology Magazine 10438:Astrophysical Journal 10382:Astrophysical Journal 9199:"The colour of stars" 8800:Astrophysical Journal 8662:. D. Reidel. p. 6686:10.1093/mnrasl/slv164 6576:Nature Communications 5396: 5200:List of nearest stars 5153:two sharks chasing a 4771:Gliese & Jahreiß 4345:Breakthrough Starshot 4316: 4141: 4106: 3997:View from this system 3813:extraterrestrial life 3423: 3292: 3135: 3113:, totaling 2.06 3009: 2891:is 35.6 AU (5.33 2877:is 11.2 AU (1.68 2863: 2754: 2742: 2699:each century, or 1.02 2642: 2562: 2467: 2394: 2387:Observational history 2253:The Southern Pointers 2117:Epsilon Centauri 1541:is about 13,000 1470:luminosity of the Sun 663:Longitude of the node 14230:circumplanetary disk 14222:OGLE-2019-BLG-0960Lb 13929:Winchcombe meteorite 13719:Shapley Supercluster 13456:Southern Crab Nebula 13173:PSR B1259−63/LS 2883 12453:C (Proxima Centauri) 12158:(4.2465 ± 0.0003 ly) 12156:C (Proxima Centauri) 11668:US Naval Observatory 10520:Astronomical Journal 10199:10.1093/mnras/stv673 8467:and B until 2050 An 8356:on 9 September 2012. 8137:Astronomical Journal 7209:Astronomical Journal 5307: 4319:Very Large Telescope 4025:improve this article 3693:Hypothetical planets 3661:data was processed. 3437:(in order from star) 2655:display significant 2501:from his station in 2415:ecliptic coordinates 2397:Digitized Sky Survey 2327:α Centauri AB ; 2237:first-magnitude star 2195:class=notpageimage| 2119:. Consequently, the 1853:, approved the name 1614:Neptune-sized planet 1521:, or more commonly, 466: −3614.39 348: −3679.25 20:For other uses, see 14663:Triple star systems 14411:C/2021 A1 (Leonard) 14312:(elliptical galaxy) 13737:Astronomical events 12443:A (Rigil Kentaurus) 12024: 11680:"The Imperial Star" 11652:simbad.u-strasbg.fr 11444:1970ROAn....5.....W 11405:1895AN....139..177R 11374:1885MmRAS..48....1G 11339:1868AN.....71..113M 11308:1851MmRAS..20...70M 11281:1842MmRAS..12..329H 10976:Sky & Telescope 10796:2013ApJ...777..165K 10724:1991Ast....19d..28C 10694:2004RMxAC..22...99L 10543:2018AJ....155...24Z 10498:Scientific American 10460:2008ApJ...679.1582G 10394:2002ApJ...576..982Q 10346:2009MNRAS.393L..21T 10190:2015MNRAS.450.2043D 10062:10.1038/nature11572 10054:2012Natur.491..207D 10033:(17 October 2012). 9995:2023ApJ...951L..20C 9929:2020PASP..132a5002B 9876:"Visit Information" 9713:2020RNAAS...4...86B 9654:2020SciA....6.7467D 9610:Scientific American 9519:10.1038/nature19106 9511:2016Natur.536..437A 9308:2014AJ....147...59A 9209:on 22 February 2012 9153:1999JKAS...32..119K 8941:2012MNRAS.427.1847B 8822:2008ApJ...687.1264M 8767:"ALPHA CENTAURI: 6" 8570:1994QJRAS..35....1M 8412:1851MNRAS..11..131M 8326:1839MNRAS...4..168H 8149:1978AJ.....83.1653K 8115:1847raom.book.....H 8033:1984BASI...12...81K 7996:1917MNRAS..77..414K 7839:2019ApJ...886...41L 7754:1982IAPPP..10...26P 7727:1998ASPC..154.1212B 7690:1993MNRAS.261L...5M 7638:"Culmination Times" 7424:2010JAHH...13..220H 7375:. F. J. Huntington. 7281:WG Triennial Report 7221:1928AJ.....39...20A 7161:1917CiUO...40..331I 7131:1915CiUO...30..235I 7091:2008bsdu.book.....S 7023:, Paul Kunitzsch". 6990:1976Stern..52..218K 6931:on 6 December 2013. 6833:1843MmRAS..13....1B 6766:1944PA.....52....8D 6677:2016MNRAS.456L...6R 6598:2021NatCo..12..922W 6540:2022AJ....164...84A 6331:2003eso..pres...39. 6257:2018ApJ...864...99J 6147:2014ApJ...796..133D 6049:2020svos.conf..457H 5884:1997AJ....113.1445W 5824:2021AJ....162...14A 5736:2005ApJS..159..141V 5634:2002yCat.2237....0D 5141:and have called it 5131:Southern Hemisphere 4389: 4352:, announced by the 4200:Epsilon Cassiopeiae 3952:interplanetary dust 3934:Circumstellar discs 3801:terrestrial planets 3430: 3204:variability due to 3122:absolute magnitudes 3002:Physical properties 2588:photographic plates 2518:Manuel John Johnson 2459:Tractatus de Globis 1767:Zakariya al-Qazwini 1525:, is a small faint 1447:, outshone by only 1270:Database references 1128:Rotational velocity 914:Rotational velocity 513:4.344 ± 0.002 478: +802.98 395:4.344 ± 0.002 54: 14460:C/2021 T4 (Lemmon) 14194:Lambda Serpentis b 13845:telescope launches 13612:5128 (Centaurus A) 13299:Proxima Centauri b 12103:white dwarf B 11865:Proxima Centauri 11706:. Alpha Centauri. 11694:. Alpha Centauri. 11682:. Alpha Centauri. 11186:The New York Times 11157:The New York Times 11058:The New York Times 10715:Astronomy Magazine 10143:on 30 October 2015 8251:Aristotle (2004). 8214:on 13 January 2009 8081:spacetelescope.org 7929:Ptolemy's Almagest 7176:"Proxima Centauri" 6333:eso0307, PR 05/03. 5391: 5388: 5387: 5285:) N or +29° North. 5244:Spellings include 5171:dark constellation 4387: 4350:Proxima Centauri b 4323: 4321:and Alpha Centauri 4309:Future exploration 4164:apparent magnitude 4148: 4136: 3948:circumstellar disc 3428: 3426: 3322:Proxima Centauri d 3318:Proxima Centauri c 3314:Proxima Centauri b 3295: 3272:absolute magnitude 3191:apparent magnitude 3162: 3012: 2867: 2856:Orbital properties 2817:apparent magnitude 2791:and away from the 2761: 2749: 2651:All components of 2649: 2609:Robert T. A. Innes 2576: 2401: 2225:apparent magnitude 2207:To the naked eye, 2135:To the Indigenous 2093:(the other hoof). 1986:approved the name 1816:Robert T. A. Innes 1785:' 1669 edition of 1661:. The common name 1645:) is the system's 1489:astronomical units 1437:apparent magnitude 1177:Other designations 360: 473.67 270:Spectral type 233:Spectral type 53:Alpha Centauri AB 52: 14703:Hipparcos objects 14562: 14561: 14366:astrophysical jet 14138:Alpha Centauri Ab 13781: 13780: 13763: 13762: 13727: 13726: 13696: 13695: 13477: 13476: 13465: 13403: 13402: 13322: 13321: 13206: 13205: 13183:WASP-15 (Nyamien) 12361: 12360: 12357: 12356: 12353: 12352: 12310: 12309: 12306: 12305: 12263: 12262: 12259: 12258: 12065: 12064: 12061: 12060: 11991: 11990: 11767:alpha-centauri.pt 11708:southastrodel.com 11696:southastrodel.com 11684:southastrodel.com 11674:on 12 April 2009. 11195:on 1 January 2022 11051:(12 April 2016). 10597:978-90-481-8687-7 10290:News & Events 10261:. 19 April 2008. 10112:Popular Mechanics 10048:(7423): 207–211. 9495:(7617): 437–440. 9137:alpha Cen A and B 8796:Hillenbrand, L.A. 8771:southastrodel.com 8701:on 22 April 2000. 8673:978-90-277-0885-4 8639:Sky and Telescope 8444:978-0-86961-068-8 8380:978-0-486-65994-7 8291:978-1-376-81951-9 8259:on 23 August 2008 8062:978-0-486-65994-7 7972:Knobel, Edward B. 7942:978-0-7156-1588-1 7589:978-0-522-84553-2 7517:978-3-540-76023-8 7488:978-0-540-07863-9 7189:978-0-19-957112-3 7100:978-0-470-24917-8 6889:978-0-387-21625-6 6862:978-1-4654-1114-3 6757:Popular Astronomy 6740:978-1-931559-44-7 6321:(Press release). 5533:Söderhjelm (1999) 5401:– see formula in 5377: 5375: 5362: 5342: 5337: 5325: 5210:Sagan Planet Walk 5120: 5119: 4627:Gill & Elkin 4225:in the middle of 4127:, and the Sun in 4101: 4100: 4093: 4075: 3866:happened to have 3687:Alpha Centauri Bc 3655:Alpha Centauri Bb 3649:Alpha Centauri Bb 3537: 3536: 3496: 3469: 3456: 3438: 3379:and orbits about 3198:magnetic activity 3067:Stellar evolution 2789:celestial equator 2743:Distances of the 2520:, observing from 2439:Alexandria, Egypt 2098:Chinese astronomy 1820:Proxima Centaurus 1672:Rijl al-Qinṭūrus, 1462:(Rigil Kentaurus) 1332: 1331: 1309:Exoplanet Archive 14725: 14615: 14614: 14613: 14603: 14602: 14601: 14591: 14590: 14579: 14578: 14577: 14570: 14542: 14541: 14532: 14531: 14530: 14454: 14443: 14429: 14427: 14426: 14422:(248370) 2005 QN 14404: 14371:2MASS J0348−6022 14352: 14350: 14349: 14339: 14337: 14336: 14306:(distant quasar) 14284: 14142: 14131: 14111: 14109: 14108: 14104:(163899) 2003 SD 14094: 14092: 14091: 14072: 14070: 14069: 14060: 14058: 14057: 14043: 14041: 14040: 14031: 14029: 14028: 14019: 14017: 14016: 14007: 14005: 14004: 14000:(231937) 2001 FO 13990: 13988: 13987: 13978: 13976: 13975: 13961: 13959: 13958: 13914: 13908: 13902: 13851: 13808: 13801: 13794: 13785: 13784: 13773: 13772: 13733: 13732: 13702: 13701: 13488: 13487: 13463: 13421:Boomerang Nebula 13409: 13408: 13328: 13327: 13212: 13211: 13198:WASP-167/KELT-13 13148:2MASS J1126−5003 12426: 12425: 12388: 12381: 12374: 12365: 12364: 12345: 12330: 12329: 12320:Sub-brown dwarfs 12316: 12315: 12295: 12278: 12277: 12269: 12268: 12251: 12238: 12225: 12212: 12202: 12189: 12145: 12133: 12128: 12099: 12082: 12081: 12071: 12070: 12052: 12051: 12048: 12043: 12037: 12036: 12018: 12011: 12004: 11995: 11994: 11981: 11980: 11957:Project Longshot 11885: 11880: 11849:Rigil Kentaurus 11826: 11819: 11812: 11803: 11802: 11795: 11793: 11791: 11782:. Archived from 11770: 11763:"Alpha Centauri" 11758: 11757:on 3 March 2016. 11742: 11737:. Nearby stars. 11723: 11716:"Alpha Centauri" 11711: 11699: 11687: 11675: 11670:. Archived from 11655: 11635: 11634: 11632: 11630: 11615: 11609: 11608: 11600: 11594: 11593: 11585: 11579: 11578: 11576: 11574: 11562: 11556: 11555: 11553: 11551: 11539: 11533: 11532: 11530: 11528: 11516: 11510: 11509: 11507: 11505: 11493: 11487: 11486: 11484: 11482: 11466: 11460: 11459: 11457: 11455: 11423: 11417: 11416: 11384: 11378: 11377: 11357: 11351: 11350: 11318: 11312: 11311: 11291: 11285: 11284: 11266: 11260: 11254: 11253: 11240: 11234: 11233: 11231: 11229: 11211: 11205: 11204: 11202: 11200: 11194: 11189:. Archived from 11176: 11170: 11169: 11167: 11165: 11148: 11142: 11141: 11139: 11137: 11126: 11117: 11116: 11114: 11112: 11097: 11091: 11090: 11076: 11070: 11069: 11067: 11065: 11045: 11039: 11038: 11036: 11034: 11029:. 28 August 2020 11019: 11013: 11012: 11010: 11008: 10993: 10987: 10986: 10984: 10982: 10967: 10961: 10960: 10934: 10914: 10908: 10895: 10894: 10888: 10880: 10878: 10876: 10860: 10854: 10853: 10851: 10849: 10844:on 4 August 2010 10830: 10829: 10824: 10818: 10817: 10807: 10789: 10763: 10754: 10753: 10751: 10749: 10734: 10728: 10727: 10709: 10698: 10697: 10687: 10667: 10661: 10660: 10634: 10632:astro-ph/0209118 10614: 10608: 10602: 10601: 10581: 10572: 10571: 10569: 10567: 10554: 10536: 10510: 10504: 10503: 10486: 10480: 10479: 10453: 10444:(2): 1582–1587. 10433: 10424: 10423: 10405: 10377: 10368: 10367: 10357: 10339: 10315: 10306: 10305: 10303: 10301: 10296:on 17 April 2008 10281: 10275: 10274: 10272: 10270: 10249: 10240: 10239: 10237: 10235: 10218: 10212: 10211: 10201: 10183: 10174:(2): 2043–2051. 10159: 10153: 10152: 10150: 10148: 10129: 10123: 10122: 10120: 10118: 10103: 10097: 10096: 10094: 10092: 10086: 10039: 10018: 10009: 10008: 10006: 9988: 9963: 9957: 9956: 9922: 9913:(1007): 015002. 9897: 9891: 9890: 9888: 9886: 9872: 9866: 9865: 9863: 9861: 9847: 9838: 9837: 9835: 9833: 9822: 9816: 9815: 9813: 9811: 9794: 9788: 9787: 9761: 9741: 9735: 9734: 9724: 9692: 9686: 9685: 9675: 9665: 9642:Science Advances 9637: 9636: 9627: 9621: 9620: 9618: 9616: 9601: 9595: 9594: 9568: 9548: 9539: 9538: 9504: 9480: 9474: 9473: 9471: 9469: 9451: 9445: 9444: 9410: 9390: 9384: 9383: 9357: 9355:astro-ph/0508260 9337: 9328: 9327: 9301: 9281: 9272: 9271: 9245: 9225: 9219: 9218: 9216: 9214: 9195: 9186: 9185: 9183: 9181: 9166: 9157: 9156: 9138: 9132: 9126: 9125: 9099: 9097:astro-ph/0401606 9081: 9075: 9069: 9068: 9042: 9040:astro-ph/0303467 9022: 9016: 9015: 8989: 8987:astro-ph/0505537 8969: 8963: 8962: 8952: 8934: 8925:(3): 1847–1866. 8912: 8904: 8898: 8897: 8871: 8869:astro-ph/0206283 8851: 8842: 8841: 8815: 8806:(2): 1264–1293. 8791: 8782: 8781: 8779: 8777: 8762: 8756: 8755: 8729: 8727:astro-ph/0202400 8709: 8703: 8702: 8697:. Archived from 8684: 8678: 8677: 8653: 8647: 8646: 8633: 8627: 8626: 8600: 8580: 8574: 8573: 8553: 8544: 8543: 8541: 8528: 8522: 8521: 8495: 8477: 8470: 8466: 8460: 8449: 8448: 8430: 8424: 8423: 8397: 8391: 8385: 8384: 8364: 8358: 8357: 8346: 8340: 8339: 8337: 8305: 8296: 8295: 8275: 8269: 8268: 8266: 8264: 8248: 8242: 8241: 8230: 8224: 8223: 8221: 8219: 8200: 8199: 8194: 8188: 8187: 8184:The Binary Stars 8176: 8163: 8162: 8160: 8128: 8119: 8118: 8102:Herschel, J.F.W. 8098: 8092: 8091: 8089: 8087: 8073: 8067: 8066: 8046: 8037: 8036: 8016: 8010: 8009: 8007: 7968: 7962: 7961: 7959: 7957: 7951: 7934: 7923: 7917: 7916: 7890: 7867: 7861: 7860: 7850: 7832: 7812: 7810: 7809: 7797: 7791: 7790: 7788: 7786: 7777:. Archived from 7764: 7758: 7757: 7737: 7731: 7730: 7710: 7704: 7703: 7701: 7673: 7672:α Cen A/B ? 7665: 7654: 7653: 7651: 7649: 7633: 7627: 7626: 7610: 7600: 7594: 7593: 7573: 7564: 7563: 7555: 7544: 7543: 7535: 7522: 7521: 7509: 7499: 7493: 7492: 7472: 7463: 7462: 7450: 7444: 7443: 7417: 7397: 7388: 7387: 7383: 7377: 7376: 7366: 7360: 7359: 7357: 7355: 7341: 7335: 7334: 7332: 7330: 7316: 7307: 7306: 7304: 7302: 7296: 7285: 7277: 7271: 7270: 7268: 7266: 7260: 7254:. October 2016. 7249: 7241: 7235: 7234: 7232: 7200: 7194: 7193: 7171: 7165: 7164: 7141: 7135: 7134: 7111: 7105: 7104: 7076: 7070: 7069: 7055: 7049: 7048: 7016: 7010: 7009: 6973: 6967: 6966: 6954: 6948: 6947: 6939: 6933: 6932: 6927:. Archived from 6918: 6912: 6911: 6900: 6894: 6893: 6873: 6867: 6866: 6846: 6840: 6839: 6814: 6808: 6807: 6799: 6790: 6789: 6787: 6776: 6770: 6769: 6751: 6745: 6744: 6724: 6713: 6712: 6711:. 16 April 2023. 6705: 6699: 6698: 6688: 6670: 6650: 6642: 6633: 6629: 6619: 6609: 6591: 6567: 6554: 6553: 6551: 6533: 6513: 6502: 6501: 6499: 6481: 6463: 6454: 6445: 6444: 6418: 6400: 6394: 6383: 6382: 6380: 6378: 6373:on 12 April 2009 6358: 6357: 6352: 6335: 6334: 6314: 6308: 6307: 6305: 6303: 6288: 6279: 6278: 6268: 6250: 6228: 6220: 6214: 6213: 6211: 6181: 6173: 6167: 6166: 6140: 6118: 6112: 6111: 6085: 6065: 6059: 6053: 6052: 6042: 6026: 6020: 6011: 5975: 5962: 5961: 5935: 5933:astro-ph/0512219 5913: 5904: 5903: 5877: 5875:astro-ph/9609106 5857: 5846: 5845: 5835: 5817: 5795: 5787: 5758: 5757: 5747: 5715: 5706: 5705: 5671: 5669:astro-ph/0609258 5649: 5638: 5637: 5625: 5610: 5609: 5583: 5563: 5536: 5525: 5519: 5517: 5516: 5515: 5504: 5503: 5502: 5495: 5484: 5477: 5472: 5462: 5457: 5448: 5443: 5442: 5427: 5418: 5412: 5406: 5400: 5398: 5397: 5392: 5389: 5378: 5376: 5373: 5372: 5371: 5360: 5355: 5353: 5352: 5347: 5343: 5338: 5335: 5323: 5321: 5302: 5296: 5292: 5286: 5284: 5276: 5272: 5268: 5259: 5253: 5250:Riguel Kentaurus 5242: 5236: 5234: 5229:Proxima Centauri 5226: 5205:Project Longshot 5183:works of fiction 5114: 5112: 5105: 5103: 5096: 5094: 5087: 5085: 5062: 5061: 5060: 5050: 5048: 5041: 5039: 5025: 5023: 5016: 5015: 5014: 5004: 5002: 4995: 4993: 4973: 4971: 4964: 4962: 4955: 4954: 4953: 4943: 4941: 4923: 4921: 4914: 4912: 4905: 4903: 4896: 4894: 4871: 4870: 4869: 4859: 4858: 4857: 4847: 4845: 4838: 4836: 4813: 4811: 4804: 4802: 4795: 4793: 4786: 4784: 4764: 4762: 4755: 4753: 4746: 4744: 4737: 4735: 4712: 4711: 4710: 4694: 4692: 4672: 4671: 4670: 4660: 4658: 4651: 4649: 4642: 4640: 4620: 4619: 4618: 4608: 4607: 4606: 4596: 4595: 4594: 4584: 4582: 4559: 4558: 4557: 4547: 4545: 4538: 4536: 4516: 4515: 4514: 4498: 4496: 4476: 4475: 4474: 4461: 4460: 4459: 4449: 4447: 4390: 4386: 4372: 4301: 4297: 4293: 4289: 4288: 4287: 4280: 4276: 4272: 4268: 4267: 4266: 4259: 4189: 4177: 4161: 4153: 4096: 4089: 4085: 4082: 4076: 4074: 4040:"Alpha Centauri" 4033: 4009: 4001: 3988: 3987: 3986: 3979: 3975: 3973: 3972: 3965: 3945: 3929: 3928: 3915: 3908: 3904: 3900: 3877: 3873: 3865: 3861: 3857: 3794:Proxima Centauri 3729: 3728: 3727: 3688: 3638: 3637: 3636: 3629: 3619: 3618: 3617: 3599: 3581: 3580: 3579: 3551: 3550: 3549: 3494: 3463: 3450: 3436: 3431: 3427: 3387: 3386: 3385: 3299:Planetary system 3277: 3262:Proxima Centauri 3247: 3245: 3216:Alpha Centauri B 3165:Alpha Centauri A 3074:orbital elements 3064: 3062: 3056: 3052: 3050: 3044: 3040: 3038: 3032: 3030: 2997: 2992: 2991: 2985: 2979: 2974: 2973: 2960: 2959: 2958: 2957: 2952: 2946: 2934: 2933: 2897: 2896: 2883: 2882: 2806: 2766: 2758: 2722: 2714: 2693: 2682: 2677:Thomas Henderson 2662:celestial sphere 2654: 2630: 2626: 2622: 2613:Proxima Centauri 2573: 2565: 2555: 2546: 2526:Thomas Henderson 2452: 2444: 2428: 2424: 2420: 2331:angular diameter 2328: 2300:Galveston, Texas 2277: 2234: 2210: 2201: 2188: 2187: 2181: 2128: 2127: 2105: 2104: 2088: 2082: 2074: 2073: 2070: 2069: 2066: 2063: 2060: 2057: 2054: 2051: 2048: 2028: 2024: 2023: 2020: 2019: 2016: 2013: 2010: 2007: 2004: 2001: 1998: 1981: 1977: 1976: 1973: 1972: 1969: 1966: 1963: 1960: 1957: 1954: 1950: 1949: 1946: 1943: 1940: 1937: 1934: 1931: 1928: 1925: 1915:Proxima Centauri 1912: 1908: 1907: 1904: 1903: 1900: 1897: 1894: 1891: 1888: 1885: 1882: 1878: 1877: 1874: 1871: 1868: 1865: 1851:multiple systems 1832:Proxima Centauri 1813: 1807: 1802: 1801: 1781:originates with 1757: 1756: 1744: 1732: 1731: 1728: 1727: 1724: 1721: 1718: 1715: 1711: 1710: 1707: 1704: 1701: 1698: 1685: 1670: 1669: 1624: 1619: 1611: 1606: 1605: 1593: 1578: 1560: 1540: 1536: 1523:Proxima Centauri 1520: 1510: 1508: 1507: 1501:and the Sun, to 1496: 1495: 1475: 1460: 1430: 1410: 1388: 1382:Proxima Centauri 1378: 1370: 1355:in the southern 1341: 1197:CCDM J14396-6050 1167: 1165: 1148: 1146: 1121: 1116: 1096: 1094: 1074: 1072: 1027: 1025: 1002: 1000: 975: 973: 957: 934: 932: 907: 902: 882: 880: 860: 858: 813: 811: 786: 784: 759: 757: 741: 728: 726: 717: 705: 703: 699: 692: 676: 674: 667: 654: 652: 635: 634: 630: 627: 609: 607: 600: 585: 583: 477: 465: 449: 447: 359: 347: 331: 329: 222:Characteristics 214: 201: 190: 185: 173: 162: 149: 138: 133: 121: 85:Observation data 73: 68:Proxima Centauri 63: 55: 51: 47: 40: 25: 14733: 14732: 14728: 14727: 14726: 14724: 14723: 14722: 14658:Maunder Minimum 14623: 14622: 14621: 14611: 14609: 14599: 14597: 14585: 14575: 14573: 14565: 14563: 14558: 14528: 14526: 14518: 14475: 14469: 14453: 14449: 14442: 14438: 14424: 14423: 14420: 14394: 14359:(spiral galaxy) 14347: 14346: 14343: 14334: 14333: 14330: 14318:sextuple system 14292: 14282: 14235:TIC 172900988 b 14189:Lalande 21185 c 14140: 14119: 14106: 14105: 14102: 14089: 14088: 14085: 14067: 14066: 14063: 14055: 14054: 14051: 14038: 14037: 14034: 14026: 14025: 14022: 14014: 14013: 14010: 14002: 14001: 13998: 13985: 13984: 13981: 13973: 13972: 13969: 13956: 13955: 13952: 13933: 13915: 13909: 13903: 13894: 13844: 13843:Space probe and 13837: 13834: 13828: 13815: 13812: 13782: 13777: 13759: 13723: 13706:Galaxy clusters 13692: 13678:IRAS 13224-3809 13646: 13473: 13399: 13318: 13202: 13136: 13102:117618 (Dofida) 13003: 12775: 12617: 12584: 12415: 12397: 12392: 12362: 12349: 12343: 12322: 12302: 12293: 12255: 12249: 12236: 12223: 12210: 12200: 12187: 12186: 12179: 12154:red dwarf 12143: 12136:Alpha Centauri 12125: 12106: 12097: 12076: 12057: 12040: 12031: 12022: 11992: 11987: 11966: 11930: 11886: 11872: 11837: 11830: 11799: 11789: 11787: 11761: 11745: 11733: 11730: 11714: 11702: 11690: 11678: 11658: 11646: 11643: 11638: 11628: 11626: 11625:. 16 April 2023 11623:Earth & Sky 11617: 11616: 11612: 11601: 11597: 11586: 11582: 11572: 11570: 11563: 11559: 11549: 11547: 11540: 11536: 11526: 11524: 11517: 11513: 11503: 11501: 11494: 11490: 11480: 11478: 11467: 11463: 11453: 11451: 11424: 11420: 11399:(12): 189–190. 11385: 11381: 11358: 11354: 11319: 11315: 11292: 11288: 11264: 11261: 11257: 11242: 11241: 11237: 11227: 11225: 11212: 11208: 11198: 11196: 11177: 11173: 11163: 11161: 11160:. 12 April 2016 11150: 11149: 11145: 11135: 11133: 11128: 11127: 11120: 11110: 11108: 11098: 11094: 11077: 11073: 11063: 11061: 11049:Overbye, Dennis 11046: 11042: 11032: 11030: 11027:Drew Ex Machina 11025:. Alien Skies. 11021: 11020: 11016: 11006: 11004: 11002:Centauri Dreams 10994: 10990: 10980: 10978: 10968: 10964: 10912: 10909: 10898: 10882: 10881: 10874: 10872: 10861: 10857: 10847: 10845: 10836: 10827: 10825: 10821: 10764: 10757: 10747: 10745: 10743:Centauri Dreams 10735: 10731: 10710: 10701: 10668: 10664: 10612: 10609: 10605: 10598: 10582: 10575: 10565: 10563: 10511: 10507: 10489:Billings, Lee. 10487: 10483: 10434: 10427: 10403:10.1.1.528.4268 10378: 10371: 10316: 10309: 10299: 10297: 10282: 10278: 10268: 10266: 10251: 10250: 10243: 10233: 10231: 10219: 10215: 10160: 10156: 10146: 10144: 10131: 10130: 10126: 10116: 10114: 10104: 10100: 10090: 10088: 10084: 10037: 10019: 10012: 9964: 9960: 9898: 9894: 9884: 9882: 9874: 9873: 9869: 9859: 9857: 9849: 9848: 9841: 9831: 9829: 9824: 9823: 9819: 9809: 9807: 9795: 9791: 9742: 9738: 9693: 9689: 9648:(3): eaax7467. 9634: 9633: 9628: 9624: 9614: 9612: 9602: 9598: 9549: 9542: 9481: 9477: 9467: 9465: 9453: 9452: 9448: 9391: 9387: 9338: 9331: 9282: 9275: 9226: 9222: 9212: 9210: 9197: 9196: 9189: 9179: 9177: 9168: 9167: 9160: 9136: 9133: 9129: 9079: 9076: 9072: 9023: 9019: 8970: 8966: 8910: 8905: 8901: 8852: 8845: 8794:Mamajek, E.E.; 8792: 8785: 8775: 8773: 8763: 8759: 8710: 8706: 8685: 8681: 8674: 8654: 8650: 8635: 8634: 8630: 8581: 8577: 8554: 8547: 8529: 8525: 8475: 8473: 8468: 8464: 8461: 8452: 8445: 8431: 8427: 8406:(16): 243–244. 8395: 8392: 8388: 8381: 8365: 8361: 8348: 8347: 8343: 8320:(19): 168–169. 8306: 8299: 8292: 8276: 8272: 8262: 8260: 8249: 8245: 8232: 8231: 8227: 8217: 8215: 8206: 8197: 8195: 8191: 8177: 8166: 8129: 8122: 8099: 8095: 8085: 8083: 8075: 8074: 8070: 8063: 8047: 8040: 8017: 8013: 7990:(5): 414–432 . 7969: 7965: 7955: 7953: 7949: 7943: 7932: 7924: 7920: 7868: 7864: 7808: 7806: 7805: 7804: 7803: 7798: 7794: 7784: 7782: 7781:on 25 July 2020 7766: 7765: 7761: 7738: 7734: 7711: 7707: 7671: 7666: 7657: 7647: 7645: 7636:James, Andrew. 7634: 7630: 7623: 7601: 7597: 7590: 7574: 7567: 7556: 7547: 7536: 7525: 7518: 7500: 7496: 7489: 7473: 7466: 7451: 7447: 7398: 7391: 7385: 7384: 7380: 7367: 7363: 7353: 7351: 7343: 7342: 7338: 7328: 7326: 7318: 7317: 7310: 7300: 7298: 7294: 7283: 7279: 7278: 7274: 7264: 7262: 7258: 7247: 7243: 7242: 7238: 7201: 7197: 7190: 7172: 7168: 7142: 7138: 7112: 7108: 7101: 7077: 7073: 7056: 7052: 7027:(book review). 7017: 7013: 6974: 6970: 6960: 6955: 6951: 6940: 6936: 6919: 6915: 6901: 6897: 6890: 6874: 6870: 6863: 6847: 6843: 6815: 6811: 6800: 6793: 6785: 6777: 6773: 6752: 6748: 6741: 6725: 6716: 6707: 6706: 6702: 6648: 6643: 6636: 6568: 6557: 6514: 6505: 6461: 6455: 6448: 6398: 6395: 6386: 6376: 6374: 6355: 6353: 6338: 6315: 6311: 6301: 6299: 6290: 6289: 6282: 6226: 6221: 6217: 6179: 6174: 6170: 6119: 6115: 6063: 6060: 6056: 6027: 6023: 5976: 5965: 5914: 5907: 5858: 5849: 5793: 5788: 5761: 5716: 5709: 5650: 5641: 5626: 5613: 5564: 5549: 5545: 5540: 5539: 5526: 5522: 5513: 5512: 5510: 5509:planet at just 5508: 5500: 5499: 5497: 5493: 5490: 5485: 5479: 5475: 5474: 5469: 5466: 5460: 5459: 5455: 5452: 5446: 5445: 5434: 5433: 5425: 5422: 5416: 5415: 5413: 5409: 5386: 5385: 5367: 5363: 5359: 5354: 5348: 5322: 5320: 5316: 5315: 5310: 5308: 5305: 5304: 5303: 5299: 5293: 5289: 5282: 5274: 5270: 5266: 5260: 5256: 5246:Rigjl Kentaurus 5243: 5239: 5232: 5227: 5223: 5218: 5191: 5139:star navigation 5127: 5110: 5108: 5101: 5099: 5092: 5090: 5083: 5081: 5058: 5056: 5055: 5053: 5046: 5044: 5037: 5035: 5021: 5019: 5012: 5010: 5009: 5007: 5000: 4998: 4991: 4989: 4969: 4967: 4960: 4958: 4951: 4949: 4948: 4946: 4939: 4937: 4919: 4917: 4910: 4908: 4901: 4899: 4892: 4890: 4867: 4865: 4864: 4862: 4855: 4853: 4852: 4850: 4843: 4841: 4834: 4832: 4809: 4807: 4800: 4798: 4791: 4789: 4782: 4780: 4760: 4758: 4751: 4749: 4742: 4740: 4733: 4731: 4708: 4706: 4705: 4703: 4690: 4688: 4668: 4666: 4665: 4663: 4656: 4654: 4647: 4645: 4638: 4636: 4616: 4614: 4613: 4611: 4604: 4602: 4601: 4599: 4592: 4590: 4589: 4587: 4580: 4578: 4555: 4553: 4552: 4550: 4543: 4541: 4534: 4532: 4512: 4510: 4509: 4507: 4494: 4492: 4472: 4470: 4469: 4467: 4457: 4455: 4454: 4452: 4445: 4443: 4383: 4367: 4329: 4311: 4299: 4295: 4291: 4285: 4284: 4282: 4278: 4274: 4270: 4264: 4263: 4261: 4257: 4251:Summer Triangle 4213:would not look 4211:Winter Triangle 4187: 4180:right ascension 4176:α Centauri AB's 4175: 4172:antipodal point 4159: 4151: 4097: 4086: 4080: 4077: 4034: 4032: 4022: 4010: 3999: 3984: 3983: 3981: 3977: 3970: 3969: 3967: 3963: 3943: 3936: 3926: 3925: 3913: 3906: 3902: 3895: 3875: 3871: 3863: 3859: 3855: 3791: 3788: 3784: 3781: 3777: 3774: 3765: 3762: 3742: 3739: 3725: 3724: 3722: 3704:radial velocity 3695: 3686: 3679: 3676: 3659:radial velocity 3651: 3645: 3634: 3633: 3631: 3628: 3625: 3621: 3615: 3614: 3612: 3610: 3607: 3597: 3594: 3590: 3588: 3585: 3577: 3576: 3574: 3571: 3568: 3547: 3546: 3544: 3532: 3506: 3462: 3449: 3435: 3418: 3412: 3405: 3402: 3398: 3395: 3383: 3382: 3380: 3378: 3375: 3347: 3344: 3330: 3324: 3312:Main articles: 3310: 3301: 3296: 3284: 3281: 3275: 3264: 3258: 3243: 3241: 3225: 3218: 3210:Maunder Minimum 3183:brightest stars 3167: 3146:right ascension 3142:stellar systems 3130: 3119: 3116: 3112: 3109: 3105: 3102: 3098: 3095: 3091: 3088: 3083: 3080: 3060: 3058: 3054: 3048: 3046: 3042: 3036: 3034: 3028: 3026: 3004: 2989: 2987: 2986: 2983: 2981: 2971: 2969: 2968: 2966: 2955: 2953: 2950: 2948: 2947: 2944: 2942: 2931: 2929: 2894: 2892: 2880: 2878: 2858: 2839:component. The 2833: 2804: 2773:first-magnitude 2764: 2756: 2737: 2720: 2712: 2691: 2680: 2652: 2643:Diagram of the 2637: 2628: 2624: 2620: 2582:made the first 2571: 2563: 2553: 2542: 2524:, who informed 2450: 2442: 2433:'s time due to 2426: 2422: 2418: 2389: 2326: 2275: 2208: 2205: 2204: 2203: 2199: 2197: 2191: 2190: 2189: 2173: 2159:). The form in 2157:Coalsack Nebula 2155:"The Emu" (the 2080: 2045: 2041: 2034: 2026: 1995: 1991: 1979: 1951: 1922: 1918: 1910: 1879: 1862: 1858: 1855:Rigil Kentaurus 1811: 1742: 1712: 1695: 1691: 1683: 1663:Rigil Kentaurus 1632: 1622: 1617: 1609: 1603: 1602: 1591: 1576: 1558: 1538: 1534: 1518: 1505: 1504: 1502: 1493: 1492: 1473: 1458: 1441:third-brightest 1428: 1408: 1397:at 4.2465 1386: 1376: 1368: 1365:Rigil Kentaurus 1339: 1203: 1163: 1161: 1144: 1142: 1134: sin 1114: 1112: 1092: 1090: 1070: 1068: 1043:Surface gravity 1035: 1032: 1023: 1021: 1010: 1007: 998: 996: 983: 980: 971: 969: 955: 930: 928: 920: sin 900: 898: 878: 876: 856: 854: 829:Surface gravity 821: 818: 809: 807: 794: 791: 782: 780: 767: 764: 755: 753: 739: 724: 722: 718: 710: 701: 697: 695: 682: 672: 670: 660: 650: 648: 632: 628: 625: 623: 605: 603: 596:Semi-major axis 593: 581: 579: 534: 517: 474: 445: 443: 438: 433:Radial velocity 416: 399: 356: 327: 325: 320: 315:Radial velocity 209: 195: 188: 182:Right ascension 179: 171: 157: 143: 136: 130:Right ascension 127: 119: 86: 80: 79: 71: 70:(bottom to the 64: 48: 41: 26: 19: 17: 12: 11: 5: 14731: 14721: 14720: 14715: 14710: 14705: 14700: 14695: 14690: 14685: 14680: 14675: 14670: 14665: 14660: 14655: 14650: 14645: 14640: 14635: 14633:Alpha Centauri 14620: 14619: 14607: 14595: 14583: 14560: 14559: 14557: 14556: 14536: 14523: 14520: 14519: 14517: 14516: 14501: 14489: 14479: 14477: 14471: 14470: 14468: 14467: 14462: 14457: 14451: 14446: 14440: 14435: 14430: 14418: 14413: 14407: 14405: 14396: 14395: 14393: 14392: 14391:(radio source) 14386: 14383:WISE 1534–1043 14380: 14377:ZTF J1901+1458 14374: 14368: 14360: 14354: 14341: 14328: 14319: 14313: 14307: 14304:QSO J0313−1806 14300: 14298: 14294: 14293: 14291: 14290: 14285: 14277: 14276: 14275: 14272: 14264: 14263: 14262: 14259: 14256: 14253: 14250: 14245: 14237: 14232: 14224: 14219: 14214: 14209: 14208: 14207: 14204: 14196: 14191: 14186: 14185: 14184: 14181: 14173: 14168: 14163: 14158: 14153: 14148: 14143: 14134: 14132: 14121: 14120: 14118: 14117: 14112: 14100: 14095: 14083: 14078: 14073: 14061: 14049: 14044: 14032: 14020: 14008: 13996: 13991: 13979: 13967: 13962: 13950: 13944: 13942: 13935: 13934: 13932: 13931: 13925: 13923: 13917: 13916: 13897: 13895: 13893: 13892: 13886: 13874: 13866: 13854: 13852: 13839: 13838: 13836: 13835: 13829: 13823: 13820: 13817: 13816: 13811: 13810: 13803: 13796: 13788: 13779: 13778: 13768: 13765: 13764: 13761: 13760: 13758: 13757: 13752: 13747: 13741: 13739: 13729: 13728: 13725: 13724: 13722: 13721: 13716: 13710: 13708: 13698: 13697: 13694: 13693: 13691: 13690: 13685: 13680: 13675: 13670: 13665: 13660: 13654: 13652: 13648: 13647: 13645: 13644: 13639: 13634: 13629: 13624: 13619: 13614: 13609: 13604: 13599: 13594: 13589: 13584: 13583: 13582: 13572: 13567: 13562: 13557: 13552: 13547: 13542: 13537: 13532: 13527: 13522: 13517: 13512: 13507: 13502: 13496: 13494: 13485: 13479: 13478: 13475: 13474: 13472: 13471: 13466: 13458: 13453: 13448: 13443: 13438: 13433: 13428: 13423: 13417: 13415: 13405: 13404: 13401: 13400: 13398: 13397: 13392: 13387: 13382: 13377: 13372: 13367: 13362: 13357: 13352: 13347: 13342: 13336: 13334: 13324: 13323: 13320: 13319: 13317: 13316: 13311: 13306: 13301: 13296: 13291: 13286: 13281: 13276: 13271: 13266: 13261: 13256: 13251: 13246: 13241: 13236: 13231: 13226: 13220: 13218: 13208: 13207: 13204: 13203: 13201: 13200: 13195: 13190: 13185: 13180: 13178:PSR J1311–3430 13175: 13170: 13165: 13160: 13155: 13150: 13144: 13142: 13138: 13137: 13135: 13134: 13129: 13124: 13119: 13114: 13109: 13104: 13099: 13094: 13089: 13084: 13079: 13074: 13069: 13064: 13059: 13054: 13049: 13044: 13039: 13037:102117 (Uklun) 13034: 13029: 13024: 13019: 13013: 13011: 13005: 13004: 13002: 13001: 12996: 12991: 12986: 12981: 12976: 12971: 12966: 12961: 12956: 12951: 12946: 12941: 12936: 12931: 12926: 12921: 12916: 12911: 12906: 12901: 12896: 12891: 12886: 12881: 12876: 12871: 12866: 12861: 12856: 12851: 12846: 12841: 12836: 12831: 12826: 12821: 12816: 12811: 12806: 12801: 12796: 12791: 12785: 12783: 12777: 12776: 12774: 12773: 12768: 12763: 12758: 12753: 12748: 12743: 12738: 12733: 12728: 12723: 12718: 12713: 12708: 12703: 12698: 12693: 12688: 12683: 12678: 12673: 12668: 12663: 12658: 12653: 12648: 12643: 12638: 12633: 12627: 12625: 12619: 12618: 12616: 12615: 12610: 12605: 12600: 12594: 12592: 12586: 12585: 12583: 12582: 12577: 12572: 12567: 12562: 12557: 12552: 12547: 12542: 12537: 12532: 12527: 12522: 12517: 12512: 12507: 12502: 12497: 12492: 12487: 12482: 12477: 12472: 12467: 12462: 12457: 12456: 12455: 12450: 12445: 12434: 12432: 12423: 12417: 12416: 12414: 12413: 12408: 12402: 12399: 12398: 12391: 12390: 12383: 12376: 12368: 12359: 12358: 12355: 12354: 12351: 12350: 12348: 12347: 12340:WISE 0855−0714 12336: 12334: 12327: 12312: 12311: 12308: 12307: 12304: 12303: 12301: 12300: 12297: 12286: 12284: 12275: 12265: 12264: 12261: 12260: 12257: 12256: 12254: 12253: 12243: 12240: 12230: 12227: 12217: 12214: 12204: 12197:Barnard's Star 12193: 12191: 12181: 12180: 12178: 12177: 12159: 12152: 12149: 12148: 12147: 12134: 12123: 12116: 12114: 12108: 12107: 12105: 12104: 12101: 12090: 12088: 12079: 12067: 12066: 12063: 12062: 12059: 12058: 12049: 12033: 12032: 12021: 12020: 12013: 12006: 11998: 11989: 11988: 11986: 11985: 11975: 11971: 11968: 11967: 11965: 11964: 11959: 11954: 11949: 11944: 11938: 11936: 11932: 11931: 11929: 11928: 11922: 11917: 11912: 11906: 11901: 11894: 11892: 11888: 11887: 11875: 11873: 11871: 11870: 11862: 11854: 11845: 11843: 11839: 11838: 11834:Alpha Centauri 11829: 11828: 11821: 11814: 11806: 11797: 11796: 11786:on 2 June 2008 11771: 11759: 11743: 11729: 11726: 11725: 11724: 11712: 11700: 11688: 11676: 11656: 11642: 11641:External links 11639: 11637: 11636: 11610: 11595: 11580: 11557: 11534: 11511: 11488: 11461: 11418: 11379: 11352: 11333:(8): 117–118. 11313: 11286: 11255: 11235: 11206: 11171: 11143: 11118: 11092: 11086:Universe Today 11071: 11040: 11014: 10988: 10962: 10896: 10855: 10819: 10755: 10729: 10699: 10662: 10625:(1): 219–224. 10603: 10596: 10573: 10505: 10481: 10468:10.1086/587799 10425: 10412:10.1086/341808 10388:(2): 982–996. 10369: 10330:(1): L21–L25. 10307: 10276: 10258:Universe Today 10241: 10213: 10154: 10124: 10098: 10029:; Santos, N.; 10010: 9958: 9892: 9867: 9839: 9817: 9789: 9736: 9687: 9622: 9596: 9540: 9475: 9446: 9385: 9348:(1): 315–321. 9329: 9273: 9220: 9187: 9158: 9127: 9070: 9017: 8980:(2): 615–629. 8964: 8899: 8843: 8830:10.1086/591785 8783: 8757: 8720:(1): 280–285. 8704: 8679: 8672: 8648: 8628: 8575: 8545: 8523: 8471: 8450: 8443: 8425: 8386: 8379: 8359: 8341: 8297: 8290: 8270: 8243: 8225: 8189: 8164: 8158:10.1086/112378 8120: 8093: 8068: 8061: 8038: 8011: 7963: 7941: 7918: 7862: 7807: 7792: 7759: 7732: 7705: 7655: 7628: 7621: 7595: 7588: 7565: 7545: 7523: 7516: 7494: 7487: 7464: 7445: 7408:(3): 220–234. 7389: 7378: 7361: 7336: 7320:"Naming Stars" 7308: 7272: 7236: 7230:10.1086/104871 7215:(913): 20–23. 7195: 7188: 7166: 7136: 7106: 7099: 7071: 7050: 7037:10.2307/595661 7031:(3): 309–312. 7011: 6968: 6949: 6934: 6913: 6895: 6888: 6868: 6861: 6841: 6809: 6791: 6771: 6746: 6739: 6714: 6700: 6634: 6555: 6503: 6446: 6384: 6336: 6309: 6280: 6215: 6194:(2): 671–678. 6168: 6113: 6076:(1): 295–302. 6054: 6021: 5963: 5926:(2): 723–736. 5905: 5892:10.1086/118360 5847: 5759: 5745:10.1086/430500 5730:(1): 141–166. 5707: 5662:(3): 695–708. 5639: 5611: 5574:(2): 653–664. 5546: 5544: 5541: 5538: 5537: 5520: 5506: 5491: 5488: 5478: 5467: 5464: 5453: 5450: 5423: 5420: 5407: 5384: 5381: 5370: 5366: 5358: 5351: 5346: 5341: 5334: 5331: 5328: 5319: 5314: 5313: 5297: 5287: 5254: 5237: 5220: 5219: 5217: 5214: 5213: 5212: 5207: 5202: 5197: 5190: 5187: 5159:Southern Cross 5126: 5123: 5122: 5121: 5118: 5117: 5115: 5106: 5097: 5088: 5079: 5076: 5073: 5072:RECONS TOP100 5069: 5068: 5066: 5063: 5051: 5042: 5033: 5029: 5028: 5026: 5017: 5005: 4996: 4987: 4984: 4981: 4977: 4976: 4974: 4965: 4956: 4944: 4935: 4932: 4929: 4925: 4924: 4915: 4906: 4897: 4888: 4885: 4882: 4875: 4874: 4872: 4860: 4848: 4839: 4830: 4827: 4824: 4817: 4816: 4814: 4805: 4796: 4787: 4778: 4775: 4772: 4768: 4767: 4765: 4756: 4747: 4738: 4729: 4726: 4723: 4716: 4715: 4713: 4701: 4698: 4695: 4686: 4683: 4680: 4676: 4675: 4673: 4661: 4652: 4643: 4634: 4631: 4628: 4624: 4623: 4621: 4609: 4597: 4585: 4576: 4573: 4570: 4566: 4565: 4563: 4560: 4548: 4539: 4530: 4527: 4524: 4520: 4519: 4517: 4505: 4502: 4499: 4490: 4487: 4484: 4480: 4479: 4477: 4465: 4462: 4450: 4441: 4438: 4435: 4431: 4430: 4425: 4420: 4414: 4413: 4410: 4407: 4400: 4397: 4394: 4382: 4379: 4375:speed of light 4310: 4307: 4099: 4098: 4013: 4011: 4004: 3998: 3995: 3978:α Centauri B's 3964:α Centauri A's 3960:zodiacal cloud 3935: 3932: 3892:habitable zone 3809:spectral types 3789: 3786: 3782: 3779: 3775: 3772: 3763: 3760: 3746:habitable zone 3740: 3737: 3694: 3691: 3677: 3674: 3647:Main article: 3644: 3641: 3630:and orbits at 3626: 3623: 3608: 3605: 3595: 3592: 3586: 3583: 3569: 3566: 3562:Epsilon Muscae 3535: 3534: 3530: 3523: 3517: 3514: 3511: 3508: 3504: 3497: 3486: 3485: 3480: 3475: 3470: 3460:Orbital period 3457: 3447:Semimajor axis 3444: 3439: 3414:Main article: 3411: 3408: 3403: 3400: 3396: 3393: 3376: 3373: 3359:habitable zone 3345: 3342: 3309: 3306: 3300: 3297: 3287: 3282: 3279: 3260:Main article: 3257: 3254: 3217: 3214: 3166: 3163: 3129: 3126: 3117: 3114: 3110: 3107: 3106:and 0.92 3103: 3100: 3096: 3093: 3092:and 0.91 3089: 3086: 3081: 3078: 3055:4.4 ± 2.1 Gyr, 3043:5.2 ± 1.9 Gyr, 3023:gyrochronology 3003: 3000: 2918:position angle 2914:apparent orbit 2857: 2854: 2832: 2831:Stellar system 2829: 2793:galactic plane 2736: 2733: 2675:In the 1830s, 2636: 2633: 2621:α Centauri AB, 2599:orbit elements 2451:–60° 51′ South 2413:. He gave its 2388: 2385: 2312:Canary Islands 2304:Ocala, Florida 2292:Chihuahua City 2193: 2192: 2183: 2182: 2176: 2175: 2174: 2172: 2169: 2165:Bram-bram-bult 2033: 2030: 2027:α Centauri B . 1980:α Centauri C . 1783:Jacobus Golius 1643:Alpha Centauri 1631: 1628: 1587:Proxima c 1581:, a candidate 1572:Proxima d 1568:habitable zone 1566:planet in the 1554:Proxima b 1351:) is a triple 1335:Alpha Centauri 1330: 1329: 1324: 1318: 1317: 1312: 1304: 1303: 1298: 1295: 1294: 1289: 1286: 1285: 1280: 1272: 1271: 1267: 1266: 1240: 1239: 1205: 1204: 1183: 1180: 1179: 1173: 1172: 1159: 1151: 1150: 1140: 1123: 1122: 1110: 1102: 1101: 1088: 1080: 1079: 1066: 1058: 1057: 1051: 1038: 1037: 1033: 1030: 1019: 1013: 1012: 1008: 1005: 994: 986: 985: 981: 978: 967: 959: 958: 952: 951: 945: 937: 936: 926: 909: 908: 896: 888: 887: 874: 866: 865: 852: 844: 843: 837: 824: 823: 819: 816: 805: 797: 796: 792: 789: 778: 770: 769: 765: 762: 751: 743: 742: 736: 735: 731: 730: 720: 707: 706: 693: 679: 678: 668: 657: 656: 646: 637: 636: 621: 612: 611: 601: 590: 589: 577: 568: 567: 564: 558: 557: 554: 548: 547: 541: 540: 537: 532: 524: 523: 511: 503: 502: 496: 487: 486: 461: 452: 451: 441: 436: 428: 427: 423: 422: 419: 414: 406: 405: 393: 385: 384: 378: 369: 368: 343: 334: 333: 323: 318: 310: 309: 305: 304: 298: 297: 294: 287: 286: 283: 276: 275: 272: 266: 265: 261: 260: 257: 250: 249: 246: 239: 238: 235: 229: 228: 224: 223: 219: 218: 215: 206: 205: 202: 192: 191: 189:14 39 35.06311 186: 176: 175: 167: 166: 163: 154: 153: 150: 140: 139: 137:14 39 36.49400 134: 124: 123: 115: 114: 109: 101: 100: 82: 81: 65: 58: 15: 9: 6: 4: 3: 2: 14730: 14719: 14716: 14714: 14711: 14709: 14706: 14704: 14701: 14699: 14696: 14694: 14691: 14689: 14686: 14684: 14683:Bayer objects 14681: 14679: 14676: 14674: 14671: 14669: 14666: 14664: 14661: 14659: 14656: 14654: 14653:Solar analogs 14651: 14649: 14646: 14644: 14641: 14639: 14636: 14634: 14631: 14630: 14628: 14618: 14608: 14606: 14596: 14594: 14589: 14584: 14582: 14572: 14571: 14568: 14555: 14551: 14550: 14545: 14537: 14535: 14525: 14524: 14521: 14514: 14512: 14507: 14506: 14502: 14499: 14498: 14493: 14490: 14487: 14485: 14481: 14480: 14478: 14472: 14466: 14463: 14461: 14458: 14456: 14447: 14445: 14436: 14434: 14431: 14428: 14419: 14417: 14414: 14412: 14409: 14408: 14406: 14403: 14397: 14390: 14389:Andy's object 14387: 14385:(brown dwarf) 14384: 14381: 14378: 14375: 14372: 14369: 14367: 14364: 14361: 14358: 14355: 14351: 14342: 14338: 14329: 14326: 14323: 14320: 14317: 14316:TIC 168789840 14314: 14311: 14308: 14305: 14302: 14301: 14299: 14295: 14289: 14286: 14283:(unconfirmed) 14281: 14278: 14273: 14270: 14269: 14268: 14265: 14260: 14257: 14254: 14251: 14249: 14246: 14243: 14242: 14241: 14238: 14236: 14233: 14231: 14228: 14225: 14223: 14220: 14218: 14215: 14213: 14210: 14205: 14202: 14201: 14200: 14197: 14195: 14192: 14190: 14187: 14182: 14179: 14178: 14177: 14174: 14172: 14169: 14167: 14164: 14162: 14159: 14157: 14154: 14152: 14149: 14147: 14144: 14141:(unconfirmed) 14139: 14136: 14135: 14133: 14130: 14126: 14122: 14116: 14113: 14110: 14101: 14099: 14096: 14093: 14084: 14082: 14079: 14077: 14074: 14071: 14062: 14059: 14050: 14048: 14045: 14042: 14033: 14030: 14021: 14018: 14009: 14006: 13997: 13995: 13994:99942 Apophis 13992: 13989: 13980: 13977: 13968: 13966: 13963: 13960: 13951: 13949: 13946: 13945: 13943: 13941: 13936: 13930: 13927: 13926: 13924: 13922: 13921:Impact events 13918: 13913: 13907: 13901: 13890: 13887: 13884: 13883: 13878: 13875: 13872: 13871: 13867: 13864: 13863: 13859: 13856: 13855: 13853: 13850: 13846: 13840: 13832: 13827: 13822: 13821: 13818: 13814:2021 in space 13809: 13804: 13802: 13797: 13795: 13790: 13789: 13786: 13776: 13766: 13756: 13753: 13751: 13748: 13746: 13743: 13742: 13740: 13738: 13734: 13730: 13720: 13717: 13715: 13712: 13711: 13709: 13707: 13703: 13699: 13689: 13686: 13684: 13681: 13679: 13676: 13674: 13671: 13669: 13666: 13664: 13661: 13659: 13656: 13655: 13653: 13649: 13643: 13640: 13638: 13635: 13633: 13630: 13628: 13625: 13623: 13620: 13618: 13615: 13613: 13610: 13608: 13605: 13603: 13600: 13598: 13595: 13593: 13590: 13588: 13585: 13581: 13578: 13577: 13576: 13573: 13571: 13568: 13566: 13563: 13561: 13558: 13556: 13553: 13551: 13548: 13546: 13543: 13541: 13538: 13536: 13533: 13531: 13528: 13526: 13523: 13521: 13518: 13516: 13513: 13511: 13508: 13506: 13503: 13501: 13498: 13497: 13495: 13493: 13489: 13486: 13484: 13480: 13470: 13467: 13462: 13459: 13457: 13454: 13452: 13449: 13447: 13444: 13442: 13439: 13437: 13434: 13432: 13429: 13427: 13424: 13422: 13419: 13418: 13416: 13414: 13410: 13406: 13396: 13393: 13391: 13388: 13386: 13383: 13381: 13378: 13376: 13373: 13371: 13368: 13366: 13363: 13361: 13358: 13356: 13353: 13351: 13348: 13346: 13343: 13341: 13338: 13337: 13335: 13333: 13332:Star clusters 13329: 13325: 13315: 13312: 13310: 13307: 13305: 13302: 13300: 13297: 13295: 13292: 13290: 13287: 13285: 13282: 13280: 13277: 13275: 13272: 13270: 13267: 13265: 13262: 13260: 13257: 13255: 13252: 13250: 13247: 13245: 13242: 13240: 13237: 13235: 13232: 13230: 13227: 13225: 13222: 13221: 13219: 13217: 13213: 13209: 13199: 13196: 13194: 13191: 13189: 13186: 13184: 13181: 13179: 13176: 13174: 13171: 13169: 13166: 13164: 13161: 13159: 13156: 13154: 13151: 13149: 13146: 13145: 13143: 13139: 13133: 13130: 13128: 13125: 13123: 13120: 13118: 13115: 13113: 13110: 13108: 13105: 13103: 13100: 13098: 13095: 13093: 13090: 13088: 13085: 13083: 13080: 13078: 13075: 13073: 13070: 13068: 13065: 13063: 13060: 13058: 13055: 13053: 13050: 13048: 13045: 13043: 13040: 13038: 13035: 13033: 13030: 13028: 13025: 13023: 13020: 13018: 13015: 13014: 13012: 13010: 13006: 13000: 12997: 12995: 12992: 12990: 12987: 12985: 12982: 12980: 12977: 12975: 12972: 12970: 12967: 12965: 12962: 12960: 12957: 12955: 12952: 12950: 12947: 12945: 12942: 12940: 12937: 12935: 12932: 12930: 12927: 12925: 12922: 12920: 12917: 12915: 12912: 12910: 12907: 12905: 12902: 12900: 12897: 12895: 12892: 12890: 12887: 12885: 12882: 12880: 12877: 12875: 12872: 12870: 12867: 12865: 12862: 12860: 12857: 12855: 12852: 12850: 12847: 12845: 12842: 12840: 12837: 12835: 12832: 12830: 12827: 12825: 12822: 12820: 12817: 12815: 12812: 12810: 12807: 12805: 12802: 12800: 12797: 12795: 12792: 12790: 12787: 12786: 12784: 12782: 12778: 12772: 12769: 12767: 12764: 12762: 12759: 12757: 12754: 12752: 12749: 12747: 12744: 12742: 12739: 12737: 12734: 12732: 12729: 12727: 12724: 12722: 12719: 12717: 12714: 12712: 12709: 12707: 12704: 12702: 12699: 12697: 12694: 12692: 12689: 12687: 12684: 12682: 12679: 12677: 12674: 12672: 12669: 12667: 12664: 12662: 12659: 12657: 12654: 12652: 12649: 12647: 12644: 12642: 12639: 12637: 12634: 12632: 12629: 12628: 12626: 12624: 12620: 12614: 12611: 12609: 12606: 12604: 12601: 12599: 12596: 12595: 12593: 12591: 12587: 12581: 12578: 12576: 12573: 12571: 12568: 12566: 12563: 12561: 12558: 12556: 12553: 12551: 12548: 12546: 12543: 12541: 12538: 12536: 12533: 12531: 12528: 12526: 12523: 12521: 12518: 12516: 12513: 12511: 12508: 12506: 12503: 12501: 12498: 12496: 12493: 12491: 12488: 12486: 12483: 12481: 12478: 12476: 12473: 12471: 12468: 12466: 12465:γ (Muhlifain) 12463: 12461: 12458: 12454: 12451: 12449: 12446: 12444: 12441: 12440: 12439: 12436: 12435: 12433: 12431: 12427: 12424: 12422: 12418: 12412: 12409: 12407: 12404: 12403: 12400: 12396: 12389: 12384: 12382: 12377: 12375: 12370: 12369: 12366: 12341: 12338: 12337: 12335: 12331: 12328: 12326: 12325:rogue planets 12321: 12317: 12313: 12298: 12291: 12288: 12287: 12285: 12283: 12279: 12276: 12274: 12270: 12266: 12247: 12244: 12241: 12234: 12231: 12228: 12221: 12220:Lalande 21185 12218: 12215: 12208: 12205: 12198: 12195: 12194: 12192: 12190: 12182: 12176: 12172: 12168: 12164: 12160: 12157: 12153: 12150: 12141: 12138: 12137: 12135: 12132: 12124: 12121: 12118: 12117: 12115: 12113: 12109: 12102: 12095: 12092: 12091: 12089: 12087: 12083: 12080: 12078: 12075:Main-sequence 12072: 12068: 12053: 12050: 12047: 12038: 12034: 12030: 12027: 12019: 12014: 12012: 12007: 12005: 12000: 11999: 11996: 11984: 11976: 11973: 11972: 11969: 11963: 11960: 11958: 11955: 11953: 11950: 11948: 11945: 11943: 11940: 11939: 11937: 11933: 11926: 11923: 11921: 11918: 11916: 11913: 11910: 11907: 11905: 11902: 11899: 11896: 11895: 11893: 11889: 11884: 11879: 11869: 11868: 11863: 11861: 11860: 11855: 11853: 11852: 11847: 11846: 11844: 11840: 11835: 11827: 11822: 11820: 11815: 11813: 11808: 11807: 11804: 11800: 11785: 11781: 11777: 11772: 11768: 11764: 11760: 11756: 11752: 11748: 11744: 11740: 11736: 11732: 11731: 11721: 11717: 11713: 11709: 11705: 11701: 11697: 11693: 11689: 11685: 11681: 11677: 11673: 11669: 11665: 11664:usno.navy.mil 11661: 11657: 11653: 11649: 11645: 11644: 11624: 11620: 11614: 11606: 11599: 11591: 11584: 11568: 11561: 11545: 11538: 11522: 11515: 11499: 11492: 11476: 11472: 11465: 11449: 11445: 11441: 11437: 11433: 11429: 11428:"Woolley 559" 11422: 11414: 11410: 11406: 11402: 11398: 11394: 11390: 11383: 11375: 11371: 11367: 11363: 11356: 11348: 11344: 11340: 11336: 11332: 11329:(in German). 11328: 11324: 11317: 11309: 11305: 11301: 11297: 11290: 11282: 11278: 11274: 11270: 11259: 11251: 11250: 11245: 11239: 11223: 11222: 11221:New Scientist 11217: 11210: 11193: 11188: 11187: 11182: 11175: 11159: 11158: 11153: 11147: 11131: 11125: 11123: 11107: 11103: 11096: 11088: 11087: 11082: 11075: 11060: 11059: 11054: 11050: 11044: 11028: 11024: 11018: 11003: 10999: 10992: 10977: 10973: 10966: 10958: 10954: 10950: 10946: 10942: 10938: 10933: 10928: 10924: 10920: 10919: 10907: 10905: 10903: 10901: 10892: 10886: 10870: 10866: 10859: 10843: 10839: 10834: 10833:public domain 10823: 10815: 10811: 10806: 10801: 10797: 10793: 10788: 10783: 10779: 10775: 10774: 10769: 10762: 10760: 10744: 10740: 10733: 10725: 10721: 10717: 10716: 10708: 10706: 10704: 10695: 10691: 10686: 10681: 10677: 10673: 10666: 10658: 10654: 10650: 10646: 10642: 10638: 10633: 10628: 10624: 10620: 10619: 10607: 10599: 10593: 10589: 10588: 10580: 10578: 10562: 10558: 10553: 10548: 10544: 10540: 10535: 10530: 10526: 10522: 10521: 10516: 10509: 10501: 10499: 10494: 10493: 10485: 10477: 10473: 10469: 10465: 10461: 10457: 10452: 10447: 10443: 10439: 10432: 10430: 10421: 10417: 10413: 10409: 10404: 10399: 10395: 10391: 10387: 10383: 10376: 10374: 10365: 10361: 10356: 10351: 10347: 10343: 10338: 10333: 10329: 10325: 10321: 10314: 10312: 10295: 10291: 10287: 10280: 10264: 10260: 10259: 10254: 10248: 10246: 10230: 10229: 10228:New Scientist 10224: 10221:Aron, Jacob. 10217: 10209: 10205: 10200: 10195: 10191: 10187: 10182: 10177: 10173: 10169: 10165: 10158: 10142: 10138: 10134: 10128: 10113: 10109: 10102: 10083: 10079: 10075: 10071: 10067: 10063: 10059: 10055: 10051: 10047: 10043: 10036: 10032: 10028: 10024: 10017: 10015: 10005: 10000: 9996: 9992: 9987: 9982: 9978: 9974: 9970: 9962: 9954: 9950: 9946: 9942: 9938: 9934: 9930: 9926: 9921: 9916: 9912: 9908: 9904: 9896: 9881: 9880:www.stsci.edu 9877: 9871: 9856: 9855:www.stsci.edu 9852: 9846: 9844: 9827: 9821: 9806: 9805: 9800: 9793: 9785: 9781: 9777: 9773: 9769: 9765: 9760: 9755: 9751: 9747: 9740: 9732: 9728: 9723: 9718: 9714: 9710: 9706: 9702: 9698: 9691: 9683: 9679: 9674: 9669: 9664: 9659: 9655: 9651: 9647: 9643: 9639: 9626: 9611: 9607: 9600: 9592: 9588: 9584: 9580: 9576: 9572: 9567: 9562: 9558: 9554: 9547: 9545: 9536: 9532: 9528: 9524: 9520: 9516: 9512: 9508: 9503: 9498: 9494: 9490: 9486: 9479: 9464: 9460: 9456: 9450: 9442: 9438: 9434: 9430: 9426: 9422: 9418: 9414: 9409: 9404: 9400: 9396: 9389: 9381: 9377: 9373: 9369: 9365: 9361: 9356: 9351: 9347: 9343: 9336: 9334: 9325: 9321: 9317: 9313: 9309: 9305: 9300: 9295: 9291: 9287: 9280: 9278: 9269: 9265: 9261: 9257: 9253: 9249: 9244: 9239: 9235: 9231: 9224: 9208: 9204: 9200: 9194: 9192: 9175: 9171: 9165: 9163: 9154: 9150: 9146: 9142: 9131: 9123: 9119: 9115: 9111: 9107: 9103: 9098: 9093: 9089: 9085: 9080:α Centauri AB 9074: 9066: 9062: 9058: 9054: 9050: 9046: 9041: 9036: 9032: 9028: 9021: 9013: 9009: 9005: 9001: 8997: 8993: 8988: 8983: 8979: 8975: 8968: 8960: 8956: 8951: 8946: 8942: 8938: 8933: 8928: 8924: 8920: 8919: 8914: 8903: 8895: 8891: 8887: 8883: 8879: 8875: 8870: 8865: 8861: 8857: 8850: 8848: 8839: 8835: 8831: 8827: 8823: 8819: 8814: 8809: 8805: 8801: 8797: 8790: 8788: 8772: 8768: 8761: 8753: 8749: 8745: 8741: 8737: 8733: 8728: 8723: 8719: 8715: 8708: 8700: 8696: 8692: 8691: 8683: 8675: 8669: 8665: 8661: 8660: 8652: 8645: 8641: 8640: 8632: 8624: 8620: 8616: 8612: 8608: 8604: 8599: 8594: 8590: 8586: 8579: 8571: 8567: 8563: 8559: 8552: 8550: 8540: 8535: 8527: 8519: 8515: 8511: 8507: 8503: 8499: 8494: 8489: 8486:(107): A107. 8485: 8481: 8459: 8457: 8455: 8446: 8440: 8436: 8429: 8421: 8417: 8413: 8409: 8405: 8401: 8390: 8382: 8376: 8372: 8371: 8363: 8355: 8351: 8345: 8336: 8331: 8327: 8323: 8319: 8315: 8311: 8304: 8302: 8293: 8287: 8283: 8282: 8274: 8258: 8254: 8247: 8239: 8235: 8229: 8213: 8209: 8204: 8203:public domain 8193: 8185: 8181: 8175: 8173: 8171: 8169: 8159: 8154: 8150: 8146: 8142: 8138: 8134: 8127: 8125: 8116: 8112: 8108: 8103: 8097: 8082: 8078: 8072: 8064: 8058: 8054: 8053: 8045: 8043: 8034: 8030: 8026: 8022: 8015: 8006: 8001: 7997: 7993: 7989: 7985: 7981: 7979: 7973: 7967: 7948: 7944: 7938: 7931: 7930: 7922: 7914: 7910: 7906: 7902: 7898: 7894: 7889: 7884: 7880: 7876: 7875: 7866: 7858: 7854: 7849: 7844: 7840: 7836: 7831: 7826: 7822: 7818: 7814: 7796: 7780: 7776: 7774: 7769: 7763: 7755: 7751: 7747: 7743: 7736: 7728: 7724: 7720: 7716: 7709: 7700: 7695: 7691: 7687: 7683: 7679: 7675: 7664: 7662: 7660: 7643: 7639: 7632: 7624: 7622:9780140512267 7618: 7614: 7609: 7608: 7599: 7591: 7585: 7581: 7580: 7572: 7570: 7561: 7554: 7552: 7550: 7541: 7534: 7532: 7530: 7528: 7519: 7513: 7508: 7507: 7498: 7490: 7484: 7480: 7479: 7471: 7469: 7460: 7456: 7449: 7441: 7437: 7433: 7429: 7425: 7421: 7416: 7411: 7407: 7403: 7396: 7394: 7382: 7374: 7373: 7365: 7350: 7346: 7340: 7325: 7321: 7315: 7313: 7293: 7289: 7282: 7276: 7257: 7253: 7246: 7240: 7231: 7226: 7222: 7218: 7214: 7210: 7206: 7199: 7191: 7185: 7181: 7177: 7170: 7162: 7158: 7154: 7150: 7146: 7145:Innes, R.T.A. 7140: 7132: 7128: 7124: 7120: 7116: 7115:Innes, R.T.A. 7110: 7102: 7096: 7092: 7088: 7084: 7083: 7075: 7067: 7063: 7062: 7054: 7046: 7042: 7038: 7034: 7030: 7026: 7022: 7015: 7007: 7003: 6999: 6995: 6991: 6987: 6983: 6979: 6972: 6964: 6953: 6945: 6938: 6930: 6926: 6925: 6917: 6909: 6905: 6899: 6891: 6885: 6881: 6880: 6872: 6864: 6858: 6854: 6853: 6845: 6838: 6834: 6830: 6826: 6822: 6821: 6813: 6805: 6798: 6796: 6784: 6783: 6775: 6767: 6763: 6759: 6758: 6750: 6742: 6736: 6732: 6731: 6723: 6721: 6719: 6710: 6704: 6696: 6692: 6687: 6682: 6678: 6674: 6669: 6664: 6661:(1): L6–L10. 6660: 6656: 6652: 6641: 6639: 6632: 6627: 6623: 6618: 6613: 6608: 6603: 6599: 6595: 6590: 6585: 6581: 6577: 6573: 6566: 6564: 6562: 6560: 6550: 6545: 6541: 6537: 6532: 6527: 6523: 6519: 6512: 6510: 6508: 6498: 6493: 6489: 6485: 6480: 6475: 6471: 6467: 6460: 6453: 6451: 6442: 6438: 6434: 6430: 6426: 6422: 6417: 6412: 6408: 6404: 6393: 6391: 6389: 6372: 6368: 6362: 6361:public domain 6351: 6349: 6347: 6345: 6343: 6341: 6332: 6328: 6325:. p. 5. 6324: 6320: 6313: 6297: 6293: 6287: 6285: 6276: 6272: 6267: 6262: 6258: 6254: 6249: 6244: 6240: 6236: 6235: 6230: 6219: 6210: 6205: 6201: 6197: 6193: 6189: 6188: 6183: 6172: 6164: 6160: 6156: 6152: 6148: 6144: 6139: 6134: 6130: 6126: 6125: 6117: 6109: 6105: 6101: 6097: 6093: 6089: 6084: 6079: 6075: 6071: 6070: 6064:α Centauri A. 6058: 6050: 6046: 6041: 6036: 6032: 6025: 6018: 6014: 6010: 6006: 6002: 5998: 5994: 5990: 5986: 5982: 5974: 5972: 5970: 5968: 5959: 5955: 5951: 5947: 5943: 5939: 5934: 5929: 5925: 5921: 5920: 5912: 5910: 5901: 5897: 5893: 5889: 5885: 5881: 5876: 5871: 5868:: 1445–1450. 5867: 5863: 5856: 5854: 5852: 5843: 5839: 5834: 5829: 5825: 5821: 5816: 5811: 5807: 5803: 5802: 5797: 5794:α Centauri AB 5786: 5784: 5782: 5780: 5778: 5776: 5774: 5772: 5770: 5768: 5766: 5764: 5755: 5751: 5746: 5741: 5737: 5733: 5729: 5725: 5721: 5714: 5712: 5703: 5699: 5695: 5691: 5687: 5683: 5679: 5675: 5670: 5665: 5661: 5657: 5656: 5648: 5646: 5644: 5635: 5631: 5624: 5622: 5620: 5618: 5616: 5607: 5603: 5599: 5595: 5591: 5587: 5582: 5577: 5573: 5569: 5562: 5560: 5558: 5556: 5554: 5552: 5547: 5534: 5530: 5524: 5494: 5483: 5470: 5456: 5441: 5437: 5431: 5426: 5411: 5404: 5382: 5379: 5368: 5364: 5356: 5349: 5344: 5339: 5332: 5329: 5326: 5317: 5301: 5291: 5280: 5264: 5258: 5251: 5248:, Portuguese 5247: 5241: 5230: 5225: 5221: 5211: 5208: 5206: 5203: 5201: 5198: 5196: 5193: 5192: 5186: 5184: 5180: 5176: 5172: 5168: 5164: 5160: 5156: 5152: 5151:Beta Centauri 5148: 5144: 5140: 5136: 5132: 5116: 5107: 5098: 5089: 5080: 5077: 5074: 5071: 5070: 5067: 5064: 5052: 5043: 5034: 5031: 5030: 5027: 5018: 5006: 4997: 4988: 4985: 4978: 4975: 4966: 4957: 4945: 4936: 4933: 4930: 4927: 4926: 4916: 4907: 4898: 4889: 4886: 4883: 4881: 4877: 4876: 4873: 4861: 4849: 4840: 4831: 4828: 4825: 4823: 4819: 4818: 4815: 4806: 4797: 4788: 4779: 4776: 4773: 4770: 4769: 4766: 4757: 4748: 4739: 4730: 4727: 4724: 4722: 4718: 4717: 4714: 4702: 4699: 4696: 4687: 4684: 4681: 4678: 4677: 4674: 4662: 4653: 4644: 4635: 4632: 4629: 4626: 4625: 4622: 4610: 4598: 4586: 4577: 4574: 4571: 4568: 4567: 4564: 4561: 4549: 4540: 4531: 4528: 4525: 4522: 4521: 4518: 4506: 4503: 4500: 4491: 4488: 4485: 4483:T. Henderson 4482: 4481: 4478: 4466: 4463: 4451: 4442: 4439: 4436: 4433: 4432: 4429: 4426: 4424: 4421: 4419: 4416: 4415: 4405: 4391: 4385: 4384: 4378: 4376: 4370: 4365: 4361: 4357: 4355: 4351: 4346: 4342: 4338: 4334: 4328: 4320: 4315: 4306: 4303: 4254: 4252: 4249:, giving the 4248: 4244: 4240: 4236: 4232: 4228: 4224: 4220: 4216: 4212: 4207: 4205: 4201: 4197: 4196:constellation 4193: 4185: 4181: 4173: 4169: 4165: 4160:α Centauri AB 4157: 4152:α Centauri AB 4150:The sky from 4145: 4140: 4134: 4131:generated by 4130: 4126: 4122: 4118: 4114: 4110: 4105: 4095: 4092: 4084: 4073: 4070: 4066: 4063: 4059: 4056: 4052: 4049: 4045: 4042: – 4041: 4037: 4036:Find sources: 4030: 4026: 4020: 4019: 4014:This section 4012: 4008: 4003: 4002: 3994: 3992: 3961: 3957: 3953: 3949: 3944:α Centauri AB 3941: 3931: 3923: 3919: 3914:α Centauri AB 3910: 3899: 3893: 3890:To be in the 3888: 3886: 3881: 3869: 3853: 3849: 3845: 3841: 3837: 3833: 3829: 3825: 3821: 3816: 3814: 3810: 3806: 3802: 3797: 3795: 3768: 3766: 3757: 3754: 3749: 3747: 3743: 3734: 3719: 3717: 3713: 3709: 3705: 3701: 3690: 3684: 3680: 3671: 3667: 3664:A search for 3662: 3660: 3656: 3650: 3640: 3603: 3572: 3563: 3559: 3554: 3542: 3533: 3529: 3524: 3522: 3518: 3515: 3512: 3509: 3507: 3503: 3498: 3495:(unconfirmed) 3493: 3492: 3488: 3487: 3484: 3479: 3474: 3467: 3461: 3454: 3448: 3443: 3432: 3422: 3417: 3407: 3390: 3371: 3367: 3362: 3360: 3356: 3352: 3348: 3339: 3335: 3329: 3323: 3319: 3315: 3305: 3291: 3286: 3273: 3269: 3263: 3253: 3251: 3239: 3235: 3231: 3223: 3222:Beta Centauri 3213: 3211: 3207: 3203: 3199: 3194: 3192: 3188: 3184: 3180: 3179:spectral type 3176: 3172: 3171:main-sequence 3159: 3155: 3151: 3147: 3143: 3139: 3134: 3125: 3123: 3084: 3075: 3070: 3068: 3045:6.4 Gyr, and 3024: 3020: 3016: 3015:Asteroseismic 3008: 2999: 2996: 2978: 2964: 2939: 2937: 2926: 2923: 2919: 2915: 2910: 2908: 2904: 2900: 2890: 2886: 2876: 2872: 2862: 2853: 2850: 2846: 2842: 2838: 2828: 2826: 2822: 2818: 2814: 2810: 2802: 2798: 2794: 2790: 2786: 2782: 2778: 2777:Beta Centauri 2774: 2770: 2753: 2746: 2745:nearest stars 2741: 2732: 2730: 2726: 2725:Einstein ring 2718: 2713:α Centauri AB 2709: 2706: 2702: 2698: 2692:α Centauri AB 2688: 2686: 2678: 2673: 2671: 2667: 2666:Edmond Halley 2663: 2658: 2657:proper motion 2646: 2645:closest stars 2641: 2632: 2629:α Centauri AB 2618: 2617:proper motion 2614: 2610: 2606: 2604: 2600: 2596: 2591: 2589: 2585: 2584:micrometrical 2581: 2580:John Herschel 2569: 2561: 2557: 2556:10 km.) 2551: 2545: 2540: 2535: 2531: 2527: 2523: 2519: 2514: 2512: 2508: 2504: 2500: 2496: 2490: 2488: 2484: 2480: 2476: 2472: 2466: 2464: 2460: 2456: 2448: 2440: 2436: 2435:proper motion 2432: 2423:41° 10′ South 2419:44° 10′ South 2416: 2412: 2411: 2406: 2398: 2393: 2384: 2382: 2378: 2374: 2370: 2366: 2362: 2357: 2355: 2350: 2346: 2342: 2341: 2336: 2332: 2323: 2321: 2317: 2313: 2309: 2305: 2301: 2297: 2293: 2289: 2285: 2281: 2272: 2270: 2267:known as the 2266: 2262: 2258: 2257:Beta Centauri 2254: 2250: 2246: 2242: 2238: 2232: 2226: 2222: 2218: 2214: 2209:α Centauri AB 2196: 2180: 2168: 2166: 2162: 2158: 2154: 2150: 2146: 2145:Beta Centauri 2142: 2138: 2133: 2131: 2122: 2118: 2114: 2113: 2112:Southern Gate 2108: 2099: 2094: 2092: 2091:Beta Centauri 2087: 2078: 2072: 2039: 2029: 2022: 1989: 1985: 1975: 1916: 1913:and the name 1906: 1856: 1852: 1848: 1845:In 2016, the 1843: 1841: 1837: 1833: 1829: 1825: 1821: 1817: 1809: 1806: 1796: 1792: 1788: 1784: 1780: 1776: 1775:Mu Sagittarii 1772: 1768: 1764: 1760: 1751: 1746: 1740: 1736: 1730: 1689: 1681: 1677: 1673: 1664: 1660: 1656: 1652: 1648: 1644: 1640: 1636: 1627: 1625: 1615: 1607: 1599: 1595: 1592:α Centauri Cc 1588: 1584: 1580: 1577:α Centauri Cd 1573: 1569: 1565: 1561: 1559:α Centauri Cb 1555: 1550: 1548: 1544: 1539:α Centauri AB 1535:α Centauri AB 1532: 1528: 1524: 1516: 1515:and the Sun. 1514: 1500: 1490: 1486: 1482: 1481:common centre 1478: 1471: 1467: 1463: 1456: 1454: 1450: 1446: 1442: 1438: 1434: 1429:α Centauri AB 1426: 1422: 1418: 1414: 1406: 1404: 1401:(1.3020 1400: 1396: 1392: 1384: 1383: 1374: 1366: 1362: 1358: 1357:constellation 1354: 1350: 1346: 1342: 1336: 1328: 1325: 1323: 1320: 1319: 1316: 1313: 1311: 1310: 1306: 1305: 1302: 1299: 1297: 1296: 1293: 1290: 1288: 1287: 1284: 1281: 1279: 1278: 1274: 1273: 1268: 1265: 1261: 1257: 1253: 1249: 1245: 1241: 1238: 1234: 1230: 1226: 1222: 1218: 1214: 1210: 1206: 1202: 1198: 1194: 1190: 1186: 1181: 1178: 1174: 1171: 1160: 1158: 1157: 1153: 1152: 1141: 1139: 1137: 1133: 1129: 1125: 1124: 1120: 1111: 1109: 1108: 1104: 1103: 1100: 1089: 1087: 1086: 1082: 1081: 1078: 1067: 1065: 1064: 1060: 1059: 1056: 1052: 1050: 1048: 1044: 1040: 1039: 1036: 1020: 1018: 1015: 1014: 1011: 995: 993: 992: 988: 987: 984: 968: 966: 965: 961: 960: 953: 950: 946: 944: 943: 939: 938: 927: 925: 923: 919: 915: 911: 910: 906: 897: 895: 894: 890: 889: 886: 875: 873: 872: 868: 867: 864: 853: 851: 850: 846: 845: 842: 838: 836: 834: 830: 826: 825: 822: 806: 804: 803: 799: 798: 795: 779: 777: 776: 772: 771: 768: 752: 750: 749: 745: 744: 737: 732: 721: 716: 714: 709: 708: 694: 691: 689: 686: 681: 680: 669: 666: 664: 659: 658: 647: 645: 643: 639: 638: 622: 620: 618: 614: 613: 602: 599: 597: 592: 591: 588: 578: 576: 574: 570: 569: 565: 563: 560: 559: 555: 553: 550: 549: 546: 542: 538: 536: 530: 526: 525: 521: 516: 512: 510: 509: 505: 504: 501: 497: 495: 493: 489: 488: 485: 481: 473: 469: 462: 460: 458: 457:Proper motion 454: 453: 442: 440: 434: 430: 429: 424: 420: 418: 412: 408: 407: 403: 398: 394: 392: 391: 387: 386: 383: 379: 377: 375: 371: 370: 367: 363: 355: 351: 344: 342: 340: 339:Proper motion 336: 335: 324: 322: 316: 312: 311: 306: 303: 299: 295: 293: 289: 288: 284: 282: 278: 277: 273: 271: 268: 267: 262: 258: 256: 252: 251: 247: 245: 241: 240: 236: 234: 231: 230: 225: 220: 216: 212: 208: 207: 203: 200: 199: 194: 193: 187: 184: 183: 178: 177: 174: 168: 164: 160: 156: 155: 151: 148: 147: 142: 141: 135: 132: 131: 126: 125: 122: 116: 113: 110: 108: 107: 106:Constellation 103: 102: 99: 96: 92: 89: 83: 77: 76:Beta Centauri 72:α Centauri AB 69: 62: 56: 50: 45: 38: 34: 30: 23: 14617:Solar System 14547: 14510: 14503: 14497:Perseverance 14496: 14486:Mars mission 14483: 14166:Kepler-1704b 14081:3361 Orpheus 13880: 13868: 13865:(April 2021) 13860: 13688:PKS 1353−341 13683:PKS 1144-379 13663:ESO 325-G004 13229:b Centauri b 12437: 12273:Brown dwarfs 12188:(red dwarfs) 12139: 12131:Solar System 11866: 11858: 11850: 11833: 11798: 11788:. Retrieved 11784:the original 11779: 11766: 11755:the original 11750: 11741:. Astronomy. 11738: 11720:glyphweb.com 11719: 11707: 11695: 11683: 11672:the original 11663: 11651: 11627:. Retrieved 11622: 11613: 11598: 11583: 11571:. Retrieved 11560: 11548:. Retrieved 11537: 11525:. Retrieved 11514: 11502:. Retrieved 11491: 11479:. Retrieved 11474: 11464: 11452:. Retrieved 11435: 11431: 11421: 11396: 11392: 11382: 11365: 11361: 11355: 11330: 11326: 11316: 11299: 11295: 11289: 11272: 11268: 11258: 11247: 11238: 11226:. Retrieved 11219: 11209: 11197:. Retrieved 11192:the original 11184: 11174: 11162:. Retrieved 11155: 11146: 11134:. Retrieved 11109:. Retrieved 11105: 11095: 11084: 11074: 11062:. Retrieved 11056: 11043: 11031:. Retrieved 11026: 11017: 11005:. Retrieved 11001: 10991: 10979:. Retrieved 10975: 10965: 10922: 10916: 10873:. Retrieved 10868: 10858: 10846:. Retrieved 10842:the original 10822: 10777: 10771: 10746:. Retrieved 10742: 10732: 10713: 10675: 10671: 10665: 10622: 10616: 10613:α Centauri A 10606: 10586: 10564:. Retrieved 10524: 10518: 10508: 10496: 10491: 10484: 10441: 10437: 10385: 10381: 10327: 10323: 10298:. Retrieved 10294:the original 10289: 10279: 10267:. Retrieved 10256: 10232:. Retrieved 10226: 10216: 10171: 10167: 10157: 10145:. Retrieved 10141:the original 10136: 10127: 10115:. Retrieved 10111: 10101: 10089:. Retrieved 10045: 10041: 9976: 9972: 9961: 9910: 9906: 9895: 9883:. Retrieved 9879: 9870: 9858:. Retrieved 9854: 9830:. Retrieved 9820: 9808:. Retrieved 9804:The Guardian 9802: 9792: 9749: 9745: 9739: 9704: 9700: 9690: 9645: 9641: 9625: 9613:. Retrieved 9609: 9599: 9556: 9552: 9492: 9488: 9478: 9466:. Retrieved 9458: 9449: 9398: 9394: 9388: 9345: 9341: 9289: 9285: 9233: 9229: 9223: 9211:. Retrieved 9207:the original 9202: 9178:. Retrieved 9144: 9140: 9130: 9087: 9083: 9073: 9030: 9026: 9020: 8977: 8973: 8967: 8922: 8916: 8902: 8859: 8855: 8803: 8799: 8774:. Retrieved 8770: 8760: 8717: 8713: 8707: 8699:the original 8689: 8682: 8659:Double Stars 8658: 8651: 8643: 8637: 8631: 8588: 8584: 8578: 8561: 8557: 8526: 8483: 8479: 8465:α Centauri A 8434: 8428: 8403: 8399: 8389: 8369: 8362: 8354:the original 8344: 8317: 8313: 8280: 8273: 8261:. Retrieved 8257:the original 8246: 8237: 8228: 8216:. Retrieved 8212:the original 8192: 8183: 8180:Aitken, R.G. 8140: 8136: 8105: 8096: 8084:. Retrieved 8080: 8071: 8051: 8024: 8020: 8014: 7987: 7983: 7977: 7966: 7954:. Retrieved 7928: 7921: 7878: 7872: 7865: 7820: 7816: 7795: 7783:. Retrieved 7779:the original 7771: 7762: 7745: 7741: 7735: 7714: 7708: 7681: 7677: 7646:. Retrieved 7641: 7631: 7606: 7598: 7578: 7559: 7539: 7510:. Springer. 7505: 7497: 7481:. Philip's. 7477: 7458: 7454: 7448: 7405: 7401: 7386:(in Chinese) 7381: 7371: 7364: 7354:17 September 7352:. Retrieved 7339: 7327:. Retrieved 7299:. Retrieved 7275: 7263:. Retrieved 7239: 7212: 7208: 7198: 7179: 7169: 7152: 7148: 7139: 7122: 7118: 7109: 7081: 7074: 7065: 7060: 7053: 7028: 7024: 7020: 7014: 6981: 6977: 6971: 6962: 6952: 6943: 6937: 6929:the original 6923: 6916: 6907: 6898: 6878: 6871: 6851: 6844: 6836: 6824: 6818: 6812: 6803: 6802:Allen, R.H. 6781: 6774: 6755: 6749: 6729: 6703: 6658: 6654: 6579: 6575: 6521: 6469: 6465: 6406: 6402: 6375:. Retrieved 6371:the original 6312: 6300:. Retrieved 6238: 6232: 6227:α Centauri A 6218: 6191: 6185: 6171: 6128: 6122: 6116: 6073: 6067: 6057: 6030: 6024: 5984: 5980: 5923: 5917: 5865: 5861: 5805: 5799: 5727: 5723: 5659: 5653: 5571: 5567: 5523: 5481: 5439: 5435: 5432:2021 paper: 5429: 5410: 5300: 5290: 5275:α Centauri's 5257: 5249: 5245: 5240: 5224: 5178: 5147:Ngarrindjeri 5142: 5128: 4980:van Leeuwen 4879: 4821: 4720: 4700:4.29 ± 0.65 4501:1.10 ± 0.15 4434:H. Henderson 4358: 4330: 4304: 4258:α Centauri A 4255: 4208: 4204:Heart Nebula 4149: 4087: 4078: 4068: 4061: 4054: 4047: 4035: 4023:Please help 4018:verification 4015: 3937: 3911: 3903:α Centauri B 3889: 3883:future, the 3876:α Centauri A 3872:α Centauri A 3864:α Centauri B 3820:Solar System 3817: 3798: 3769: 3756:spectrograph 3750: 3733:star cluster 3720: 3712:brown dwarfs 3696: 3663: 3652: 3555: 3538: 3527: 3501: 3489: 3473:Eccentricity 3391: 3370:mini-Neptune 3363: 3351:Earth masses 3338:minimum mass 3331: 3302: 3265: 3226: 3196:The type of 3195: 3168: 3071: 3013: 2940: 2935: 2927: 2913: 2911: 2898: 2884: 2868: 2848: 2844: 2840: 2834: 2811:or 2.9 2762: 2729:conjunctions 2721:α Centauri A 2710: 2705:spectroscopy 2689: 2674: 2650: 2607: 2592: 2577: 2572:α Centauri B 2568:stellar type 2564:α Centauri A 2522:Saint Helena 2515: 2492: 2468: 2458: 2445:but, due to 2408: 2402: 2365:Local Bubble 2358: 2345:UV Ceti star 2338: 2324: 2273: 2252: 2249:The Pointers 2248: 2206: 2202:in Centaurus 2198:Location of 2164: 2152: 2148: 2134: 2129: 2121:Chinese name 2110: 2106: 2095: 2083:) and Latin 2037: 2035: 1987: 1914: 1911:α Centauri A 1854: 1844: 1839: 1831: 1830:'. The name 1819: 1812:α Centauri C 1810: 1794: 1790: 1778: 1762: 1758: 1749: 1747: 1734: 1687: 1679: 1671: 1668:رجل القنطورس 1662: 1642: 1634: 1633: 1618:α Centauri B 1610:α Centauri A 1598:mini-Neptune 1589: 1574: 1557: 1551: 1531:class M 1522: 1519:α Centauri C 1517: 1476: 1474:α Centauri B 1461: 1459:α Centauri A 1457: 1417:class G 1409:α Centauri A 1407: 1391:closest star 1387:α Centauri C 1380: 1377:α Centauri B 1372: 1369:α Centauri A 1364: 1348: 1344: 1338: 1334: 1333: 1321: 1307: 1275: 1243: 1225:GCTP 3309.00 1208: 1154: 1135: 1131: 1126: 1105: 1083: 1061: 1046: 1041: 1016: 989: 962: 956:α Centauri B 940: 921: 917: 912: 891: 869: 847: 832: 827: 800: 773: 746: 740:α Centauri A 711: 683: 661: 640: 617:Eccentricity 615: 594: 571: 561: 551: 527: 506: 490: 455: 431: 409: 388: 372: 337: 313: 196: 180: 172:α Centauri B 170: 144: 128: 120:α Centauri A 118: 104: 49: 14605:Spaceflight 14476:exploration 14444:(PanSTARRS) 14357:ALESS 073.1 14297:Discoveries 14161:HD 110082 b 14156:HD 108236 f 14146:COCONUTS-2b 14098:4660 Nereus 13294:HIP 67522 b 13289:HIP 65426 b 13284:HD 121504 b 13279:HD 117618 b 13274:HD 117207 b 13269:HD 114729 b 13264:HD 114386 b 13254:HD 113538 b 13249:HD 101930 b 13244:HD 109749 b 13239:HD 103197 b 13234:HD 102117 b 12490:θ (Menkent) 12448:B (Toliman) 11974:- Disproven 11790:18 November 11275:: 370–371. 11265:α Centauri, 11033:22 February 11007:22 February 10981:22 February 10913:α Centauri? 10566:29 December 9885:1 September 9860:1 September 9090:: 235–246. 9033:: 293–297. 8911:alpha Cen A 8591:: A35–A48. 7956:22 December 7775:(aavso.org) 7329:16 December 7155:: 331–336. 7125:: 235–236. 6946:(in Latin). 6649:alpha Cen B 6180:α Centauri: 5447:3.3 = 8.77 5263:declination 5143:Kamailehope 5135:Polynesians 5065:37.5 ± 2.5 4928:Söderhjelm 4820:van Altena 4697:1.32 ± 0.2 4562:32.4 ± 2.5 4504:3.57 ± 0.5 4464:2.81 ± 0.53 4423:light-years 4412:References 4221:outshining 4215:equilateral 4184:declination 3907:1.2 AU 3880:Oort clouds 3700:metallicity 3602:HIP 65426 b 3541:Candidate 1 3525:3.3~7 3478:Inclination 3416:Candidate 1 3366:super-Earth 3246:0.2 yr 3234:light curve 3154:declination 3150:hours angle 2781:double star 2672:positions. 2670:astrometric 2611:discovered 2550:light-years 2548:4.396 2532:of it. The 2455:Robert Hues 2427:43.5° South 2377:light-years 2369:brown dwarf 2320:culmination 2280:circumpolar 2269:False Cross 2171:Observation 2149:Bermbermgle 2032:Other names 1822:, from 1787:Al-Farghani 1763:aṭ-Ṭhalīmān 1647:designation 1612:may have a 1564:Earth-sized 1425:binary star 1399:light-years 1353:star system 1246:: Toliman, 1085:Metallicity 1063:Temperature 871:Metallicity 849:Temperature 719:(secondary) 642:Inclination 292:color index 281:color index 255:color index 244:color index 198:Declination 146:Declination 37:Centaurus A 14627:Categories 14325:black hole 14151:Gliese 486 14125:Exoplanets 13891:(Dec 2021) 13885:(Nov 2021) 13873:(Oct 2021) 13714:Abell S740 13673:ESO 444-46 13668:ESO 383-76 13658:ESO 269-57 13431:G292.0+1.8 13216:Exoplanets 12480:ζ (Alnair) 12296:0.0011 ly) 12252:0.0009 ly) 12226:0.0007 ly) 12213:0.0013 ly) 12203:0.0004 ly) 12146:0.0022 ly) 12100:0.0054 ly) 11199:10 January 11164:10 January 11136:10 January 11130:"Starshot" 10780:(2): 165. 10678:: 99–103. 10534:1711.06320 10234:8 December 10181:1503.07528 10147:8 December 10117:8 December 10091:17 October 10027:Queloz, D. 9986:2208.14990 9979:(1): L20. 9920:1910.09709 9810:16 January 9759:2004.06685 9566:2005.12114 9502:1609.03449 9408:1611.03495 9243:1610.06185 9213:16 January 9180:2 December 9147:(2): 119. 8539:2103.03289 8493:1610.06079 8396:α Centauri 8253:"De Caelo" 7830:1910.01243 7813:accretion" 7461:: 137–140. 7347:(Report). 7250:(Report). 6978:Die Sterne 6668:1510.05598 6589:2102.05159 6582:(1): 922. 6531:2207.13524 6479:2202.05188 6416:1611.03495 6399:α Centauri 6294:(Report). 6248:1806.07567 6131:(2): 133. 6040:2007.02170 5815:2104.10086 5543:References 5233:α Centauri 5179:South Gate 5125:In culture 4428:petametres 4402:Parallax ( 4341:light sail 4325:See also: 4192:Cassiopeia 4168:Betelgeuse 4144:Cassiopeia 4129:Cassiopeia 4117:Betelgeuse 4081:March 2023 4051:newspapers 3991:frost line 3885:Oort Cloud 3868:gas giants 3860:α Centauri 3856:α Centauri 3716:gas giants 3611:planet at 3326:See also: 3232:band. Its 3206:star spots 3193:of −0.05. 3158:concentric 2903:periastron 2875:periastron 2805:α Centauri 2765:α Centauri 2757:α Centauri 2681:α Centauri 2653:α Centauri 2647:to the Sun 2635:Kinematics 2625:α Centauri 2503:Puducherry 2465:, noting: 2447:precession 2288:Hermosillo 2286:(close to 2217:arcseconds 2161:Wotjobaluk 2130:Nán Mén Èr 2109:, meaning 1791:Compendium 1759:aẓ-Ẓalīmān 1745:Orionis). 1733:) or even 1688:Rigil Kent 1635:α Centauri 1411:and B are 1345:α Cen 1340:α Centauri 1248:α Centauri 1233:SAO 252838 1213:α Centauri 1195:−60°5483, 1185:Gliese 559 1149: km/s 1053:4.37 1045:(log 1017:Luminosity 947:4.85 935: km/s 839:4.30 831:(log 802:Luminosity 685:Periastron 450: km/s 332: km/s 302:Astrometry 33:A Centauri 29:a Centauri 14673:Centaurus 14581:Astronomy 14505:Tianwen-1 14492:Mars 2020 14450:C/2014 UN 14439:C/2014 OG 14433:8P/Tuttle 14327:candidate 14217:NGTS-14Ab 13938:Selected 13882:LICIACube 13426:Fleming 1 12590:Flamsteed 12460:β (Hadar) 12346:0.041 ly) 12290:Luhman 16 12239:0.012 ly) 11962:Starlight 11780:Space.com 11718:. Stars. 11607:(Report). 11605:HIP 71681 11592:(Report). 11590:HIP 71683 11567:HIP 71683 11544:HIP 71681 11521:HIP 71683 11228:29 August 10957:119198201 10932:1401.6896 10814:118414142 10787:1306.2889 10748:12 August 10685:0705.3444 10657:119476010 10561:118994786 10527:(1): 12. 10451:0802.3482 10398:CiteSeerX 10337:0811.0673 10208:119162954 10023:Mayor, M. 9953:204823856 9945:0004-6280 9784:215754278 9731:225798015 9707:(6): 86. 9591:218869742 9433:0004-6361 9324:117715969 9299:1401.0847 9292:(3): 12. 9122:119487043 9012:119078808 8959:118414505 8932:1209.0222 8813:0807.1686 8776:12 August 8598:1412.3648 8218:13 August 8086:29 August 7888:1312.1303 7857:203642080 7823:(1): 19. 7684:: L5–L7. 7440:118454721 7415:1010.4610 7006:162297139 6942:Artigos. 6695:119294717 6275:119482849 6241:(1): 99. 6163:119184190 6138:1409.3593 6108:118785894 6083:0706.1682 6009:0004-6361 5842:233307418 5808:(1): 14. 5754:0067-0049 5694:0004-6361 5581:0708.1752 5461:7 = 34.52 5380:≈ 5175:Milky Way 5161:, and in 5145:. In the 4878:Perryman 4369:Apollo 11 4339:or laser 4156:Centaurus 3950:or dense 3896:2.1 3870:orbiting 3852:Hale–Bopp 3848:Hyakutake 3836:deuterium 3434:Companion 3268:red dwarf 3072:From the 3017:studies, 2871:eccentric 2717:Milky Way 2695:6.1 2603:ephemeris 2593:By 1926, 2375:, at 3.6 2373:Luhman 16 2349:magnitude 2308:Lanzarote 2221:naked eye 1828:Centaurus 1805:al-Ẓulmān 1684:Κένταυρος 1655:Centaurus 1649:given by 1639:Latinised 1600:1.5 1583:sub-Earth 1547:Neptune's 1527:red dwarf 1485:eccentric 1477:(Toliman) 1445:night sky 1433:naked eye 1431:. To the 1361:Centaurus 1349:Alpha Cen 1264:HIP 71681 1256:HD 128621 1237:HIP 71683 1221:HD 128620 1117:0.3 903:0.5 562:Companion 213: (V) 161: (V) 112:Centaurus 14363:PJ352–15 14322:V723 Mon 14288:YSES 2 b 14212:NGTS-13b 14199:LHS 1678 13775:Category 13755:SN 1986G 13750:SN 1895B 13483:Galaxies 13464:(RCW 86) 13446:NGC 5307 13441:NGC 3918 13395:Stock 16 13380:NGC 5662 13375:NGC 5617 13370:NGC 5460 13365:NGC 5316 13360:NGC 5281 13355:NGC 5286 13350:NGC 4230 13345:NGC 3766 13314:WASP-15b 13158:Gaia BH2 12999:5489 (c) 12994:5485 (c) 12989:5471 (b) 12979:5358 (v) 12959:5222 (y) 12954:5207 (N) 12949:5174 (z) 12944:5172 (M) 12939:5141 (Q) 12934:5089 (d) 12929:5071 (K) 12924:5041 (m) 12919:5035 (J) 12914:5006 (r) 12899:4940 (f) 12894:4889 (n) 12889:4888 (e) 12884:4874 (p) 12879:4831 (w) 12874:4817 (l) 12864:4748 (u) 12859:4732 (G) 12854:4724 (x) 12844:4712 (x) 12839:4682 (F) 12834:4652 (D) 12829:4620 (E) 12824:4546 (B) 12819:4537 (j) 12799:4476 (C) 12794:4466 (C) 12789:4460 (A) 12756:V945 (H) 12701:V763 (C) 12696:V761 (a) 12623:Variable 12246:Ross 154 12207:Wolf 359 12165:?; Bc?; 11983:Category 11857:Toliman 11629:13 March 11569:(Report) 11471:"Gl 559" 11448:Archived 11249:Newsweek 11111:14 April 11064:12 April 10925:: A102. 10885:cite web 10848:24 April 10502:(video). 10476:12152444 10420:53469170 10364:18141997 10300:19 April 10269:19 April 10263:Archived 10082:Archived 10070:23075844 10031:Udry, S. 9752:: A120. 9682:31998838 9615:2 August 9527:27558064 9441:50867264 9268:55597767 9236:: A137. 9174:Archived 9065:15886763 8894:17293259 8838:27151456 8752:14308791 8623:59039482 8518:55865290 8263:6 August 8182:(1961). 8143:: 1653. 8104:(1847). 7974:(1917). 7947:Archived 7913:33043358 7648:6 August 7292:Archived 7256:Archived 6904:Hyde, T. 6626:33568657 6441:50867264 5987:: A145, 5958:13039037 5900:18969130 5702:16080025 5606:18759600 5405:article. 5279:latitude 5189:See also 5169:-shaped 5155:stingray 4719:Woolley 4679:Roberts 4523:Maclear 4409:Distance 4188:02 39 36 4178:current 4133:Celestia 3840:hydrogen 3771:50 3723:0.5–0.9 3706:or star 3666:transits 3613:0.5–2.5 3591:0.5–0.7 3519:~65 ± 25 3340:of 1.17 3283:☉ 3187:Arcturus 3118:☉ 3111:☉ 3104:☉ 3097:☉ 3090:☉ 3082:☉ 2907:apastron 2889:apastron 2552:or 4.159 2544:61 Cygni 2534:parallax 2507:Mizar AB 2487:Centaure 2483:Eridanus 2463:Achernar 2410:Almagest 2265:asterism 2153:Tchingal 2141:Victoria 1755:الظليمان 1680:Qinṭūrus 1651:J. Bayer 1623:α Cen Bb 1472:, while 1413:Sun-like 1201:GC 19728 1107:Rotation 1034:☉ 1009:☉ 982:☉ 893:Rotation 820:☉ 793:☉ 766:☉ 531: (M 508:Distance 492:Parallax 413: (M 390:Distance 374:Parallax 14567:Portals 14511:Zhurong 14399:Comets 14345:2021 DR 14332:2018 AG 14267:TOI-755 14240:TOI-178 14227:PDS 70c 14176:L 98-59 14171:KOI-5Ab 14115:2018 AH 14087:1994 WR 14076:2019 XS 14065:2021 UA 14053:2021 TP 14047:2021 SG 14036:2016 AJ 14024:2021 PH 14012:2021 GW 13983:2021 DW 13971:2016 DV 13965:2020 XR 13954:2021 AV 13833: » 13824:« 13436:IC 2944 13413:Nebulae 13340:IC 2944 13224:2M1207b 13193:WASP-42 13188:WASP-41 13163:GJ 3737 12292:(6.5029 12248:(9.7063 12222:(8.3044 12209:(7.8558 12199:(5.9629 12142:(4.3441 12096:(8.7094 12044:member 12042:Primary 11947:AIMStar 11891:Planets 11739:jumk.de 11722:. eSky. 11440:Bibcode 11438:: ill. 11401:Bibcode 11370:Bibcode 11368:: 188. 11335:Bibcode 11304:Bibcode 11277:Bibcode 10937:Bibcode 10792:Bibcode 10720:Bibcode 10690:Bibcode 10637:Bibcode 10539:Bibcode 10456:Bibcode 10390:Bibcode 10342:Bibcode 10186:Bibcode 10078:1110271 10050:Bibcode 9991:Bibcode 9925:Bibcode 9832:24 July 9764:Bibcode 9709:Bibcode 9673:6962037 9650:Bibcode 9571:Bibcode 9559:: A77. 9535:4451513 9507:Bibcode 9468:11 July 9413:Bibcode 9360:Bibcode 9304:Bibcode 9248:Bibcode 9149:Bibcode 9102:Bibcode 9045:Bibcode 8992:Bibcode 8937:Bibcode 8874:Bibcode 8818:Bibcode 8732:Bibcode 8603:Bibcode 8566:Bibcode 8564:: 1–8. 8498:Bibcode 8476:α Cen A 8408:Bibcode 8322:Bibcode 8145:Bibcode 8111:Bibcode 8029:Bibcode 7992:Bibcode 7893:Bibcode 7835:Bibcode 7750:Bibcode 7723:Bibcode 7686:Bibcode 7420:Bibcode 7301:14 July 7217:Bibcode 7157:Bibcode 7127:Bibcode 7087:Bibcode 6986:Bibcode 6984:: 218. 6829:Bibcode 6762:Bibcode 6673:Bibcode 6617:7876126 6594:Bibcode 6536:Bibcode 6484:Bibcode 6421:Bibcode 6327:Bibcode 6253:Bibcode 6196:Bibcode 6143:Bibcode 6088:Bibcode 6045:Bibcode 6033:: 457. 5989:Bibcode 5938:Bibcode 5880:Bibcode 5820:Bibcode 5796:system" 5732:Bibcode 5674:Bibcode 5630:Bibcode 5586:Bibcode 4952:−0.0021 4950:+0.0022 4569:Moesta 4418:parsecs 4399:Subject 4393:Source 4300:α Cen B 4296:α Cen A 4292:α Cen B 4279:α Cen A 4275:α Cen B 4271:α Cen A 4219:Procyon 4121:Procyon 4065:scholar 3824:Jupiter 3818:In the 3803:around 3708:transit 3622:3.3–11 3202:coronal 2963:Mercury 2821:Canopus 2578:Later, 2528:at the 2475:England 2431:Ptolemy 2405:Ptolemy 2381:parsecs 2371:system 2363:of the 2361:G-cloud 2333:of the 2284:equator 2245:Canopus 2137:Boorong 2107:Nán Mén 2038:Bungula 1988:Toliman 1840:Proxima 1800:الظلمان 1795:Tolimân 1779:Toliman 1750:Toliman 1676:Centaur 1659:Centaur 1549:orbit. 1453:Canopus 1443:in the 1427:system 1415:stars ( 1393:to the 1379:), and 1373:Toliman 1252:HR 5460 1244:α Cen B 1217:HR 5459 1209:α Cen A 1189:FK5 538 734:Details 723:231.519 671:205.073 552:Primary 98:J2000.0 95:Equinox 91:J2000.0 14474:Space 14310:ID2299 14280:Vega b 13862:Tianhe 13745:SN 185 13469:SuWt 2 13461:SN 185 13451:RCW 79 13168:J1407b 13153:2M1207 13132:131399 13127:125595 13122:125072 13117:124448 13112:121504 13107:121228 13097:117207 13092:116434 13087:115600 13082:114729 13077:114386 13072:113766 13067:113538 13062:110113 13057:109749 13052:108236 13047:107914 13042:103197 13032:101930 13027:100453 12342:(7.430 12333:Y-type 12282:L-type 12235:(8.724 12185:M-type 12122:(0 ly) 12112:G-type 12086:A-type 11836:system 11302:: 98. 10955: 10875:7 June 10835:: 10812: 10655: 10594: 10559: 10474: 10418: 10400: 10362: 10206: 10076: 10068: 10042:Nature 9951: 9943: 9782: 9729: 9680: 9670: 9589: 9533: 9525: 9489:Nature 9439: 9431: 9401:: L7. 9380:119120 9378: 9322: 9266: 9120: 9063: 9010: 8957: 8892: 8862:: L9. 8836: 8750: 8670: 8621: 8516: 8441: 8377: 8288: 8240:. 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1513:Saturn 1449:Sirius 1322:ARICNS 1277:SIMBAD 1260:LHS 51 1229:LHS 50 1168: 1097: 1075: 1028: 1026:0.0007 1022:0.4981 1003: 1001:0.0036 997:0.8591 991:Radius 976: 974:0.0025 970:0.9092 883: 861: 814: 812:0.0019 808:1.5059 787: 785:0.0055 781:1.2175 775:Radius 760: 758:0.0029 754:1.0788 729:° 677:° 655:° 653:0.0089 649:79.243 608:0.0096 604:17.493 580:79.762 573:Period 296:+0.88 285:+0.68 259:+0.71 248:+0.24 217:+1.33 165:+0.01 14593:Stars 14513:rover 14353:(TNO) 14340:(TNO) 13651:Other 13520:4650A 13141:Other 13022:98176 13017:97413 12771:V1400 12766:V1369 12761:V1032 12613:4 (h) 12608:3 (k) 12603:2 (g) 12598:1 (i) 12430:Bayer 12421:Stars 12077:stars 11842:Stars 11573:9 May 11550:9 May 11527:9 May 11504:9 May 11481:9 May 11454:9 May 10953:S2CID 10927:arXiv 10810:S2CID 10782:arXiv 10680:arXiv 10653:S2CID 10627:arXiv 10557:S2CID 10529:arXiv 10472:S2CID 10446:arXiv 10416:S2CID 10360:S2CID 10332:arXiv 10204:S2CID 10176:arXiv 10085:(PDF) 10074:S2CID 10038:(PDF) 9981:arXiv 9949:S2CID 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