3978:
3136:
41:
588:
4789:
881:
824:
4813:
4765:
4801:
4777:
856:
from Beta
Circini or from Alpha Centauri. It contains 80–100 stars of 10th magnitude and fainter, which are spread out over a diameter of 10 arcseconds. The brighter stars, however, are not true members of the cluster, as they are closer to the Earth than the dimmer ones. NGC 5823 appears
943:
740:. Theta Circini is a B-class irregular variable, ranging in magnitude from 5.0 to 5.4. T Circini has a B-type spectrum, ranging in magnitude from 10.6 to 9.3 over a period of 3.298 days, although it is actually an eclipsing binary system rather than a pulsating star. AX is a
757:
is a faint star that fluctuates between magnitudes 12.57 and 12.62 over a period of 2 hours 33 minutes. Over 99% of its composition appears to be helium. Its origin is unclear, but thought to be the result of the merger of a helium and a carbon/oxygen white dwarf.
504:, respectively, as a set square and ruler, a compass, and a surveyor's level in a set of draughtsman's instruments. Circinus was given its current name in 1763, when Lacaille published an updated sky map with Latin names for the constellations he introduced.
907:
first listed in the 1971 Bernes
Catalog. The dark nebula component is easily visible in a large amateur telescope, and it measures 12 by 5 arcminutes. The smaller reflection nebula component requires a larger instrument and
851:
88, is an 800-million-year-old open cluster, located 3500 light-years away and spanning a 12-light-year region along the constellation's northern border. Despite having an integrated magnitude of 7.9, the cluster can be seen by
1039:
proposed that the debris trail of comet C/1969 T1 could intersect with the Earth's orbit and generate a meteor outburst coming from a radiant close to Beta
Circini. The ACI shower peaks on 4 June, the day it was first observed.
877:, contains 12 stars in a diameter of 4.5 arcseconds but exhibits a magnitude similar to NGC 5823 (7.8). At 8270 light-years, it requires an amateur telescope with an aperture over 300 mm to be easily discerned.
752:
with an apparent magnitude ranging from 7.37 to 7.71 over 2.4 days. Both cepheids are spectroscopic binaries, with companions that are blue-white stars of spectral type B6 and 5 and 4.7 solar masses, respectively.
1007:
is a low mass X-ray binary system, comprising a black hole of around 8 solar masses and a yellow G0III-G5III subgiant star. X-ray outbursts were recorded in 1987 and 1997, and possibly 1971–72.
988:. Recorded by Chinese observers in 185 AD, SN 185 was visible in the night sky for around eight months; its remnants, known as RCW 86, cover an area larger than the typical full moon.
895:
has a magnitude of 9.8 around a central star of magnitude 14.2, located 5.2 degrees west-southwest of Alpha
Circini. It is only visible as a disc at magnifications over 200-fold.
2723:
1794:
Evans, Nancy Remage; Bond, Howard E.; Schaefer, Gail H.; Mason, Brian D.; Karovska, Margarita; Tingle, Evan (2013). "Binary
Cepheids: Separations and Mass Ratios in 5M ⊙ Binaries".
683:
is a binary star 450 light-years away, whose components need a telescope of 150 mm to be seen, as they are only 0.8 arcseconds apart. The brighter component is a bluish
999:, was observed at magnitude 6.5 on 3 September 1926, before fading and fluctuating between magnitudes 11.7 and 12.5, during 1928, and magnitude 13, in 1929. Nova Circini 1995 (
707:
of spectral types O7III-V and O9.5V, respectively, and are estimated to have around 22 and 12 times the Sun's mass. Over 3600 light-years away, this system would outshine
4511:
4431:
3708:
715:) distant. The two main components are separated by 50 arcseconds, resolvable to the naked eye for individuals with good vision and easily discernible with a telescope.
873:
is fainter (integrated magnitude of 9.8)—its brightest star is only 11th magnitude—and smaller (7.0 arcminutes), comprising only 30 stars. The third open cluster,
4476:
4295:
1536:
1432:
695:
is also a multiple star whose components have magnitudes of 5.1 and 13.4 and orbit around a common centre of gravity every 3.9 days. The brighter component is a close
1592:
1365:
4471:
1564:
765:
is a sun-like yellow dwarf star of spectral type G0VFe+0.4 and magnitude 6.29, around 79 light-years away. Its two planets were discovered in 2011 through the
4014:
1739:
677:, a white main sequence star of spectral type A3Va and a magnitude of 4.07, about 100 light-years away. It has around 1.8 times the diameter of the Sun.
4446:
4421:
927:
with 6.9 by 3.0 arcminutes and 26,000 light-years in diameter, is located 13 million light-years away from Earth and lies 4 degrees off the
4506:
2049:
Gvaramadze, V. V.; Kniazev, A. Y.; Bestenlehner, J. M.; Bodensteiner, J.; Langer, N.; Greiner, J.; Grebel, E. K.; Berdnikov, L. N.; Beletsky, Y. (2015-11-01).
991:
A white dwarf star in a close binary system can accumulate material from its companion until it ignites and blows off in a thermonuclear explosion, known as a
1875:
2589:
Kreidberg, Laura; Bailyn, Charles D.; Farr, Will M.; Kalogera, Vicky (2012). "Mass
Measurements of Black Holes in X-ray Transients: is There a Mass Gap?".
4656:
2642:
Casares, J.; Zurita, C.; Shahbaz, T.; Charles, P.A.; Fender, R.P. (2004). "Evidence of a Black Hole in the X-ray
Transient GS 1354–64 (=BW Circini)".
3672:
2335:
1024:
465:
277:
2458:
3701:
3170:
2754:
4288:
744:
that varies between magnitudes 5.6 and 6.19 over 5.3 days. It is a yellow-white supergiant of spectral type F8II+, 1600 light-years away.
919:. Discovered in 1977, it is a relatively unobscured galaxy (magnitude 10.6), which is unusual for galaxies located in constellations near the
4007:
2731:
1004:
1000:
896:
996:
733:
2019:
1989:
1959:
4843:
4665:
3694:
870:
1492:
Penny, Laura R.; Seyle, Debra; Gies, Douglas R.; Harvin, James A.; Bagnuolo, Jr.; Thaller, M. L.; Fullerton, A. W.; Kaper, L. (2001).
4281:
3981:
761:
Several stars with planetary systems lie within the borders of
Circinus, although none of the host stars are particularly prominent.
976:, also called the Circinus Pulsar, has expelled a 20-light-year-long jet of material from its southern pole, clearly visible in the
807:
As this constellation intersects the plane of the Milky Way, there are many massive stars located in this constellation, including
804:) discovered in 2010 via the radial velocity method, orbits this star at a distance of 2.9 AU, approximately every 1840 days.
728:
493 variable stars have been recorded in
Circinus, but most have a very small range or are quite dim. Three prominent examples are
1494:"Tomographic Separation of Composite Spectra. VII. The Physical Properties of the Massive Triple System HD 135240 (Delta Circini)"
4000:
861:, although it has also been described as "tulip-shaped" and "boxy". That cluster can be easily mistaken with a similar cluster,
4649:
2276:
Maiolino, R; Krabbe, A.; Thatte, N.; Genzel, R. (1998). "Seyfert
Activity and Nuclear Star Formation in the Circinus Galaxy".
3665:
2791:
2707:
2260:
2235:
2208:
2183:
2155:
2123:
1696:
1662:
1476:
1413:
1349:
1279:
1251:
575:
each year at 9 p.m. on 30 July. The recommended three-letter abbreviation for the constellation, as adopted by the
3163:
2837:
725:
is a blue-white main sequence star of spectral type B3V and magnitude 6.09, located around 1273 light-years away.
4642:
4546:
4634:
4838:
3658:
576:
190:
184:
2532:
788:), orbits farther out at 2.226 AU, with a period of approximately 1161 days. Even fainter, at magnitude 8.8,
1193:
3156:
1931:
721:
is a yellow giant of spectral type G8III and magnitude 5.17, located around 276 light-years distant, and
3180:
700:
1876:"Temperature and gravity of the pulsating extreme helium star LSS 3184 (BX Cir) through its pulsation cycle"
4551:
2432:
1049:
556:
4521:
4396:
3930:
3546:
2539:. Cambridge, Massachusetts: American Association of Variable Star Observers. 18 June 2012. Archived from
627:
389:
1031:
in 1977, the meteors have an average velocity of 27.1 km/s and are thought to be associated with a
673:
and they take 2600 years to rotate around a common centre of gravity. The second brightest star is
4755:
4697:
4619:
4210:
3790:
3391:
3276:
2466:
3730:
3191:
2925:
2855:
2395:
947:
704:
688:
662:
601:
481:
353:
45:
22:
548:
4737:
4687:
4531:
4526:
4516:
4406:
4361:
4346:
4326:
4316:
4250:
3860:
3850:
3735:
3556:
3386:
3366:
3206:
2846:
1848:
1793:
1768:
1713:
968:. Observations of Circinus X-1 in July 2007 revealed the presence of X-ray jets normally found in
4123:
4099:
3910:
3905:
3800:
3639:
3506:
3501:
3496:
3306:
3286:
1686:
1016:
936:
843:
are found within the borders of Circinus, all visible with amateur telescopes of varying sizes.
4541:
4461:
4416:
4401:
4386:
4336:
4195:
4166:
4022:
3945:
3915:
3855:
3830:
3825:
3820:
3770:
3740:
3576:
3561:
3516:
3376:
3341:
3331:
3326:
3271:
3246:
3211:
2976:
2830:
1405:
884:
792:
is 220 light-years away and has 99% of the Sun's mass and a similar spectral type of G8V.
766:
493:
361:
2225:
1241:
4712:
4702:
4566:
4466:
4441:
4376:
4366:
4321:
4304:
4225:
4215:
4084:
3965:
3900:
3885:
3880:
3875:
3865:
3840:
3755:
3616:
3486:
3471:
3451:
3436:
3431:
3426:
3406:
3396:
3356:
3221:
2958:
2027:
1997:
1967:
866:
525:
497:
310:
306:
212:
1901:
1397:
1136:
4599:
4351:
4331:
4260:
4161:
4094:
4074:
3611:
3491:
3441:
3381:
2661:
2608:
2571:
2504:
2354:
2295:
2072:
1897:
1813:
1508:
1202:
1188:
373:
198:
2784:
A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations
1620:
626:. Not only the brightest star in the constellation, it is also the brightest example of a
496:, on a chart of the southern sky. On that chart, Lacaille portrayed the constellations of
8:
4817:
4391:
4041:
3870:
3745:
3591:
3416:
3216:
995:. These stars generally brighten by 7 to 16 magnitudes. Nova Circini 1926, also known as
812:
544:
501:
319:
302:
2665:
2612:
2575:
2508:
2358:
2299:
2076:
1817:
1512:
1493:
1206:
1074:
4805:
4793:
4486:
2677:
2651:
2624:
2598:
2588:
2493:"Hopkins Ultraviolet Telescope Observations of Nova Circini 1995 and Nova Aquilae 1995"
2400:
2372:
2344:
2311:
2285:
2062:
1913:
1887:
1829:
1803:
848:
615:
381:
151:
606:
Circinus is a faint constellation, with only one star brighter than fourth magnitude.
4833:
4664:
4561:
4536:
4436:
4381:
4303:
3139:
2872:
2823:
2810:
2787:
2703:
2628:
2620:
2367:
2330:
2256:
2231:
2204:
2179:
2151:
2119:
2090:
1825:
1692:
1658:
1472:
1409:
1398:
1345:
1275:
1247:
1032:
981:
951:
904:
780:(Jupiter masses) and orbits its star every 3.27 days, at 0.0444 AU; the larger,
670:
669:
is only discernible with a telescope. The distance between the two stars is 260
665:
companion of spectral type K5 and magnitude 8.5, which with a separation of 5.7
365:
208:
2681:
2376:
2315:
1917:
1833:
1304:
1107:
4769:
4556:
4491:
3920:
3810:
3521:
3316:
3010:
2669:
2616:
2512:
2362:
2303:
2111:
2080:
1905:
1821:
1516:
1036:
840:
749:
741:
696:
446:
397:
115:
76:
2227:
1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers
2201:
1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers
4501:
3815:
3321:
3119:
2900:
1909:
916:
560:
457:
158:
40:
4456:
4371:
4146:
4118:
4050:
3311:
3251:
3241:
3148:
2390:
1300:
932:
928:
909:
647:
623:
529:
461:
427:
appeared in Circinus in 185 AD and was recorded by Chinese observers. Two
262:
811:(or simply MN18), a blue supergiant located in a bipolar nebula, as well as 9
4827:
4496:
4451:
4426:
4411:
2915:
2895:
2890:
2880:
2641:
2143:
2094:
1237:
1162:
1020:
924:
858:
729:
692:
680:
651:
631:
611:
607:
533:
485:
469:
453:
385:
377:
345:
272:
254:
61:
2815:
2085:
2050:
857:
distinct to the observer, sometimes seen as a reversed "S", as described by
571:, and the declination coordinates are between −55.43° and −70.62°. Circinus
4781:
4707:
4356:
4220:
4023:
The 41 additional constellations added in the 16th, 17th and 18th centuries
3456:
3059:
3000:
2905:
2885:
2427:
973:
965:
961:
957:
853:
836:
808:
774:
722:
687:
of spectral type B5IV+ and magnitude 4.51, while the dimmer component is a
674:
439:
349:
1655:
Guidebook to the Constellations : Telescopic Sights, Tales, and Myths
4742:
4255:
3785:
3780:
3775:
3581:
3266:
3261:
3256:
3041:
2910:
2656:
2290:
2048:
1892:
1460:
1333:
1132:
1103:
900:
793:
781:
770:
718:
658:
655:
587:
572:
537:
405:
174:
3650:
1400:
The Star Atlas Companion: What You Need to Know about the Constellations
438:
runs through the constellation, featuring prominent objects such as the
4481:
4341:
4064:
3960:
3955:
3950:
3750:
3606:
3601:
3586:
3296:
2948:
2943:
2938:
2933:
2540:
1464:
1337:
1267:
1028:
969:
754:
745:
737:
619:
401:
393:
323:
547:. The official constellation boundaries, as set by Belgian astronomer
4732:
4604:
4594:
4176:
4156:
4137:
4128:
3895:
3835:
3795:
3626:
3536:
3481:
3461:
3421:
3346:
3281:
3033:
2984:
2966:
2230:. Patrick Moore's Practical Astronomy Series. Springer. p. 162.
920:
887:'s view of NGC 5315, showing its intricate structure and central star
874:
789:
762:
666:
635:
513:
435:
421:
413:
409:
290:
225:
3765:
3716:
3231:
3935:
3845:
3551:
3361:
3093:
3067:
2673:
2517:
2492:
2307:
2067:
1521:
892:
862:
844:
828:
643:
639:
541:
449:
442:
404:
is a faint star thought to have been formed from the merger of two
2603:
2349:
1808:
880:
823:
4171:
4151:
3940:
3925:
3718:
3571:
3566:
3541:
3411:
1137:"Lacaille's grouping of Norma, Circinus, and Triangulum Australe"
923:, since their dim light is obscured by gas and dust. This oblong
797:
684:
552:
417:
1688:
Astronomy of the Milky Way: Observer's Guide to the Southern Sky
1191:(1922). "The New International Symbols for the Constellations".
4722:
4717:
4692:
4682:
4677:
4609:
4240:
4235:
4230:
4205:
4190:
4185:
4109:
4104:
4079:
4069:
3760:
3621:
3596:
3526:
3511:
3476:
3401:
3371:
3351:
3236:
3226:
3196:
3111:
3085:
2491:
Greeley, Bradford W.; Blair, William P.; Long, Knox S. (1995).
2051:"The blue supergiant MN18 and its bipolar circumstellar nebula"
1936:
1744:
1597:
1569:
1541:
1437:
1370:
1003:) reached a maximum apparent magnitude of 7.2 in January 1995.
985:
942:
712:
540:−50° to −70°, the whole constellation is only visible south of
424:
591:
The constellation Circinus as it can be seen by the naked eye.
368:
tool used for drawing circles (it should not be confused with
4727:
4245:
4089:
3805:
3531:
3466:
3291:
3015:
977:
708:
517:
369:
357:
294:
124:
85:
4614:
4059:
4036:
3890:
3446:
3336:
3201:
3005:
2863:
2811:
The Deep Photographic Guide to the Constellations: Circinus
2761:
2462:
2437:
2404:
992:
521:
428:
298:
136:
97:
4776:
2275:
1873:
1272:
The Constellations: An Enthusiast's Guide to the Night Sky
711:
at magnitude −4.8 if it were 32 light-years (10
472:
also discovered in 1977, radiate from this constellation.
2562:
Cannon, A.J. (1930). "Becker's Nova Circini No. 2 1926".
1163:"'The '"Constellations : Part 2 Culmination Times"'"
691:
of magnitude 5.5. They orbit each other every 180 years.
130:
91:
1846:
972:
systems. Located at 19,000 light-years, the pulsar
2253:
Imaging the Southern Sky: An Amateur Astronomer's Guide
915:
Circinus also houses ESO 97-G13, commonly known as the
431:
have been observed more recently, in the 20th century.
4666:
Constellations introduced by Nicolas-Louis de Lacaille
2459:"NASA Telescopes Help Solve Ancient Supernova Mystery"
2329:
For, B.-Q.; Koribalski, B. S.; Jarrett, T. H. (2012).
1996:. Paris Observatory. 12 September 2011. Archived from
1966:. Paris Observatory. 12 September 2011. Archived from
1344:. Princeton: Princeton University Press. p. 120.
4753:
2426:
Nemiroff, R.; Bonnell, J., eds. (13 September 2001).
2391:"Circinus X-1: Neutron Stars Join the Black Hole Set"
815:, a very high number for such a small constellation.
703:), with a minor dip of magnitude (0.1). Both are hot
133:
127:
121:
100:
94:
88:
82:
2328:
2026:. Paris Observatory. 26 January 2010. Archived from
1491:
1274:. London, United Kingdom: Aurum Press. p. 387.
330:Best visible at 21:00 (9 p.m.) during the month of
118:
79:
2141:
634:A7 Vp SrCrEu, showing increased emissions of
16:Constellation in the southern celestial hemisphere
2336:Monthly Notices of the Royal Astronomical Society
2055:Monthly Notices of the Royal Astronomical Society
1855:. American Association of Variable Star Observers
1775:. American Association of Variable Star Observers
1720:. American Association of Variable Star Observers
950:'s false-color image of Circinus X-1 showing its
352:, first defined in 1756 by the French astronomer
4825:
3178:
2490:
2451:
2425:
2331:"Gas and Star Formation in the Circinus Galaxy"
2178:. Cambridge University Press. pp. 349–50.
1940:. Centre de Données astronomiques de Strasbourg
1748:. Centre de Données astronomiques de Strasbourg
1601:. Centre de Données astronomiques de Strasbourg
1573:. Centre de Données astronomiques de Strasbourg
1545:. Centre de Données astronomiques de Strasbourg
1471:. Princeton University Press. pp. 118–19.
1441:. Centre de Données astronomiques de Strasbourg
1374:. Centre de Données astronomiques de Strasbourg
2755:"2011 International Geophysical Year Calendar"
2250:
2169:
2167:
4650:
4289:
4008:
3702:
3666:
3164:
2845:
2831:
2693:
2691:
2137:
2135:
1459:
1332:
1266:
1160:
408:. Two sun-like stars have planetary systems:
3058:
2486:
2484:
2116:The Caldwell Objects And How to Observe Them
2106:
2104:
1847:Otero, Sebastian Alberto (30 October 2011).
1691:. New York, New York: Springer. p. 31.
2781:
2582:
2173:
2164:
1453:
1246:. Cambridge University Press. p. 410.
376:which points north). Its brightest star is
4657:
4643:
4296:
4282:
4015:
4001:
3709:
3695:
3673:
3659:
3171:
3157:
2838:
2824:
2782:Sherrod, P. Clay; Koed, Thomas L. (2003).
2697:
2688:
2217:
2132:
1924:
1648:
1646:
1644:
1642:
1391:
1389:
1328:
1326:
1098:
1096:
1069:
1067:
1065:
646:. Stars of this type have oddly localised
39:
3680:
3032:
2655:
2602:
2516:
2481:
2366:
2348:
2289:
2110:
2101:
2084:
2066:
1891:
1807:
1680:
1678:
1676:
1674:
1520:
1404:. New York, New York: Springer. pp.
1232:
1230:
1228:
1226:
1224:
1222:
1220:
1218:
1216:
935:to the Milky Way, and therefore hosts an
563:coordinates of these borders lie between
941:
879:
822:
586:
460:, discovered in 1977; it is the closest
3110:
2730:. IAU. 15 November 2012. Archived from
2251:Chadwick, Stephen; Cooper, Ian (2012).
1867:
1840:
1787:
1760:
1652:
1639:
1395:
1386:
1323:
1295:
1293:
1291:
1187:
1181:
1093:
1062:
4826:
3084:
2752:
2700:Meteor Showers and Their Parent Comets
2561:
2223:
2198:
1705:
1684:
1671:
1657:. Springer New York. pp. 743–47.
1427:
1425:
1243:Patrick Moore's Data Book of Astronomy
1213:
1125:
4638:
4277:
3996:
3690:
3654:
3152:
2819:
2322:
1874:Woolf, V. M.; Jeffery, C. S. (2002).
1236:
630:in the night sky. It has the unusual
2564:Harvard College Observatory Bulletin
1932:"LTT 6035 – High proper-motion Star"
1288:
372:, a constellation that represents a
4487:Psalterium Georgianum/Harpa Georgii
2148:The Photographic Atlas of the Stars
1766:
1732:
1711:
1585:
1557:
1529:
1422:
1358:
1260:
1131:
1102:
818:
13:
4382:Honores Friderici/Gloria Frederici
2465:. 24 November 2011. Archived from
2024:The Extrasolar Planet Encyclopedia
1994:The Extrasolar Planet Encyclopedia
1964:The Extrasolar Planet Encyclopedia
1081:. International Astronomical Union
1075:"Circinus, constellation boundary"
628:rapidly oscillating Ap (RoAp) star
507:
492:, representing a pair of dividing
400:visible with the unaided eye, and
14:
4855:
4844:Constellations listed by Lacaille
2804:
1625:International Variable Star Index
1342:Stars and Planets Guide (5th ed.)
1299:
1161:James, Andrew (7 February 2011).
1010:
524:, Triangulum Australe, Norma and
488:of Circinus with the French name
4811:
4799:
4787:
4775:
4763:
4307:(including Ptolemy's Argo Navis)
3977:
3976:
3135:
3134:
2428:"X-Rays and the Circinus Pulsar"
2368:10.1111/j.1365-2966.2012.21416.x
577:International Astronomical Union
528:, Circinus lies adjacent to the
243:Stars within 10.00 pc (32.62 ly)
114:
75:
4033:Vespucci or Corsalius early 16c
2775:
2746:
2716:
2635:
2555:
2525:
2419:
2383:
2269:
2244:
2192:
2174:O'Meara, Stephen James (2002).
2142:Arnold, H.J.P.; Doherty, P.D.;
2042:
2012:
1982:
1952:
1613:
1485:
831:, showing its backwards S shape
2786:. Courier Dover Publications.
2702:. Cambridge University Press.
1167:Southern Astronomical Delights
1154:
869:. Comparatively, open cluster
318:Visible at latitudes between +
1:
2497:Astrophysical Journal Letters
1055:
701:rotating ellipsoidal variable
4581:obsolete constellation names
3717:48 constellations listed by
2433:Astronomy Picture of the Day
1937:SIMBAD Astronomical Database
1880:Astronomy & Astrophysics
1745:SIMBAD Astronomical Database
1598:SIMBAD Astronomical Database
1570:SIMBAD Astronomical Database
1542:SIMBAD Astronomical Database
1438:SIMBAD Astronomical Database
1371:SIMBAD Astronomical Database
1050:Circinus (Chinese astronomy)
964:star system that includes a
773:, has a mass of 0.0351
557:equatorial coordinate system
555:of 14 segments. In the
7:
4522:Sceptrum et Manus Iustitiae
2224:Bakich, Michael E. (2010).
2199:Bakich, Michael E. (2010).
1396:Bagnall, Philip M. (2012).
1270:; Nathanson, Carol (1991).
1043:
582:
480:In 1756, French astronomer
452:. Circinus hosts a notable
412:has two small planets, and
390:rapidly oscillating Ap star
10:
4860:
2698:Jenniskens, Peter (2006).
2621:10.1088/0004-637x/757/1/36
2150:. CRC Press. p. 176.
1910:10.1051/0004-6361:20021113
1826:10.1088/0004-6256/146/4/93
599:
551:in 1930, are defined by a
475:
20:
4673:
4590:
4575:
4312:
4273:
4028:
3992:
3974:
3726:
3686:
3635:
3187:
3132:
3106:
3080:
3054:
3028:
2993:
2975:
2957:
2924:
2871:
2862:
2856:List of stars in Circinus
2853:
2847:Constellation of Circinus
2644:The Astrophysical Journal
2591:The Astrophysical Journal
2396:Chandra X-ray Observatory
2278:The Astrophysical Journal
2255:. Springer. p. 139.
2203:. Springer. p. 174.
2118:. Springer. p. 184.
1621:"Circinus search results"
1501:The Astrophysical Journal
1169:. Sydney, New South Wales
1027:(ACI). First observed in
948:Chandra X-ray Observatory
602:List of stars in Circinus
482:Nicolas-Louis de Lacaille
354:Nicolas-Louis de Lacaille
316:
284:
271:
261:
250:
242:
234:
223:
207:
197:
183:
173:
157:
147:
70:
60:
52:
46:List of stars in Circinus
38:
33:
23:Circinus (disambiguation)
4517:Sceptrum Brandenburgicum
3181:88 modern constellations
1767:BSJ (30 November 2013).
1311:. University of Illinois
654:. Alpha Circini forms a
595:
235:Stars brighter than 3.00
4839:Southern constellations
4305:Obsolete constellations
4056:Keyser & de Houtman
3640:Lists of constellations
1902:2002A&A...395..535W
1469:Stars and Planets Guide
984:in Circinus is that of
937:active galactic nucleus
4542:Telescopium Herschelii
1712:VSX (4 January 2010).
1653:Simpson, Phil (2012).
954:
888:
885:Hubble Space Telescope
832:
827:An astrophotograph of
767:radial velocity method
592:
464:to the Milky Way. The
388:, it is the brightest
4467:Officina Typographica
3681:Constellation history
2086:10.1093/mnras/stv1995
1685:Inglis, Mike (2004).
1189:Russell, Henry Norris
945:
891:The planetary nebula
883:
826:
622:away and 4° south of
600:Further information:
590:
2533:"Types of Variables"
2176:The Caldwell Objects
1796:Astronomical Journal
931:. It is the closest
618:of 3.19, is 54
21:For other uses, see
4392:Globus Aerostaticus
4042:Triangulum Australe
3592:Triangulum Australe
2753:Jenniskens, Peter.
2734:on 21 February 2014
2666:2004ApJ...613L.133C
2613:2012ApJ...757...36K
2576:1930BHarO.872....1C
2509:1995ApJ...454L..43G
2359:2012MNRAS.425.1934F
2300:1998ApJ...493..650M
2077:2015MNRAS.454..219G
1818:2013AJ....146...93E
1513:2001ApJ...548..889P
1207:1922PA.....30..469R
800:-like planet (1.6 M
579:in 1922, is "Cir".
536:stars. As it is at
502:Triangulum Australe
364:, referring to the
303:Triangulum Australe
30:
2728:Meteor Data Center
2543:on 17 October 2018
2401:Harvard University
1079:The Constellations
980:spectrum. Another
955:
889:
833:
616:apparent magnitude
593:
392:in the night sky.
384:of 3.19. Slightly
382:apparent magnitude
344:is a small, faint
179:−55.43° to −70.62°
28:
4751:
4750:
4632:
4631:
4628:
4627:
4562:Turdus Solitarius
4537:Taurus Poniatovii
4532:Tarandus/Rangifer
4437:Machina Electrica
4269:
4268:
3988:
3987:
3648:
3647:
3146:
3145:
3128:
3127:
3102:
3101:
3076:
3075:
3050:
3049:
3024:
3023:
2793:978-0-486-42820-8
2724:"Alpha Circinids"
2709:978-0-521-85349-1
2262:978-1-4614-4750-4
2237:978-1-4419-1776-8
2210:978-1-4419-1777-5
2185:978-0-521-82796-6
2157:978-0-7503-0654-6
2125:978-1-4419-0326-6
2112:Mobberley, Martin
1698:978-1-85233-742-1
1664:978-1-4419-6941-5
1478:978-0-691-08913-3
1415:978-1-4614-0830-7
1351:978-0-69-117788-5
1281:978-1-85410-088-7
1253:978-0-521-89935-2
1194:Popular Astronomy
1033:long-period comet
982:supernova remnant
905:reflection nebula
841:planetary nebulae
699:(specifically, a
650:and are slightly
374:mariner's compass
339:
338:
4851:
4816:
4815:
4814:
4804:
4803:
4802:
4792:
4791:
4790:
4780:
4779:
4768:
4767:
4766:
4759:
4659:
4652:
4645:
4636:
4635:
4557:Triangulum Minus
4492:Quadrans Muralis
4298:
4291:
4284:
4275:
4274:
4017:
4010:
4003:
3994:
3993:
3980:
3979:
3921:Piscis Austrinus
3811:Corona Australis
3711:
3704:
3697:
3688:
3687:
3675:
3668:
3661:
3652:
3651:
3522:Piscis Austrinus
3317:Corona Australis
3173:
3166:
3159:
3150:
3149:
3138:
3137:
3108:
3107:
3082:
3081:
3056:
3055:
3030:
3029:
2869:
2868:
2840:
2833:
2826:
2817:
2816:
2798:
2797:
2779:
2773:
2772:
2770:
2768:
2759:
2750:
2744:
2743:
2741:
2739:
2720:
2714:
2713:
2695:
2686:
2685:
2659:
2657:astro-ph/0408331
2650:(2): L133–L136.
2639:
2633:
2632:
2606:
2586:
2580:
2579:
2559:
2553:
2552:
2550:
2548:
2529:
2523:
2522:
2520:
2488:
2479:
2478:
2476:
2474:
2455:
2449:
2448:
2446:
2444:
2423:
2417:
2416:
2414:
2412:
2387:
2381:
2380:
2370:
2352:
2326:
2320:
2319:
2293:
2291:astro-ph/9709091
2273:
2267:
2266:
2248:
2242:
2241:
2221:
2215:
2214:
2196:
2190:
2189:
2171:
2162:
2161:
2139:
2130:
2129:
2108:
2099:
2098:
2088:
2070:
2046:
2040:
2039:
2037:
2035:
2016:
2010:
2009:
2007:
2005:
1986:
1980:
1979:
1977:
1975:
1956:
1950:
1949:
1947:
1945:
1928:
1922:
1921:
1895:
1893:astro-ph/0208269
1871:
1865:
1864:
1862:
1860:
1844:
1838:
1837:
1811:
1802:(4): 93, 10 pp.
1791:
1785:
1784:
1782:
1780:
1764:
1758:
1757:
1755:
1753:
1736:
1730:
1729:
1727:
1725:
1709:
1703:
1702:
1682:
1669:
1668:
1650:
1637:
1636:
1634:
1632:
1617:
1611:
1610:
1608:
1606:
1589:
1583:
1582:
1580:
1578:
1561:
1555:
1554:
1552:
1550:
1533:
1527:
1526:
1524:
1498:
1489:
1483:
1482:
1457:
1451:
1450:
1448:
1446:
1429:
1420:
1419:
1403:
1393:
1384:
1383:
1381:
1379:
1362:
1356:
1355:
1330:
1321:
1320:
1318:
1316:
1297:
1286:
1285:
1264:
1258:
1257:
1234:
1211:
1210:
1185:
1179:
1178:
1176:
1174:
1158:
1152:
1151:
1149:
1147:
1129:
1123:
1122:
1120:
1118:
1100:
1091:
1090:
1088:
1086:
1071:
1037:Peter Jenniskens
1015:Circinus is the
819:Deep-sky objects
813:Wolf-Rayet stars
750:Cepheid variable
742:Cepheid variable
697:eclipsing binary
570:
566:
500:, Circinus, and
447:planetary nebula
398:Cepheid variable
333:
169:
165:
143:
142:
139:
138:
135:
132:
129:
126:
123:
120:
107:
106:
103:
102:
99:
96:
93:
90:
87:
84:
81:
43:
31:
27:
4859:
4858:
4854:
4853:
4852:
4850:
4849:
4848:
4824:
4823:
4822:
4812:
4810:
4800:
4798:
4788:
4786:
4774:
4764:
4762:
4754:
4752:
4747:
4669:
4663:
4633:
4624:
4586:
4571:
4502:Robur Carolinum
4308:
4302:
4265:
4024:
4021:
3984:
3970:
3816:Corona Borealis
3722:
3715:
3682:
3679:
3649:
3644:
3631:
3322:Corona Borealis
3183:
3177:
3147:
3142:
3124:
3120:Circinus Galaxy
3098:
3072:
3046:
3020:
2989:
2971:
2953:
2920:
2858:
2849:
2844:
2807:
2802:
2801:
2794:
2780:
2776:
2766:
2764:
2757:
2751:
2747:
2737:
2735:
2722:
2721:
2717:
2710:
2696:
2689:
2640:
2636:
2587:
2583:
2560:
2556:
2546:
2544:
2531:
2530:
2526:
2489:
2482:
2472:
2470:
2469:on 17 June 2019
2457:
2456:
2452:
2442:
2440:
2424:
2420:
2410:
2408:
2389:
2388:
2384:
2343:(3): 1934–50 .
2327:
2323:
2274:
2270:
2263:
2249:
2245:
2238:
2222:
2218:
2211:
2197:
2193:
2186:
2172:
2165:
2158:
2140:
2133:
2126:
2109:
2102:
2047:
2043:
2033:
2031:
2018:
2017:
2013:
2003:
2001:
1988:
1987:
1983:
1973:
1971:
1958:
1957:
1953:
1943:
1941:
1930:
1929:
1925:
1872:
1868:
1858:
1856:
1845:
1841:
1792:
1788:
1778:
1776:
1765:
1761:
1751:
1749:
1738:
1737:
1733:
1723:
1721:
1710:
1706:
1699:
1683:
1672:
1665:
1651:
1640:
1630:
1628:
1619:
1618:
1614:
1604:
1602:
1591:
1590:
1586:
1576:
1574:
1563:
1562:
1558:
1548:
1546:
1537:"Delta Circini"
1535:
1534:
1530:
1496:
1490:
1486:
1479:
1458:
1454:
1444:
1442:
1433:"Gamma Circini"
1431:
1430:
1423:
1416:
1394:
1387:
1377:
1375:
1364:
1363:
1359:
1352:
1331:
1324:
1314:
1312:
1305:"Alpha Circini"
1298:
1289:
1282:
1265:
1261:
1254:
1235:
1214:
1186:
1182:
1172:
1170:
1159:
1155:
1145:
1143:
1130:
1126:
1116:
1114:
1101:
1094:
1084:
1082:
1073:
1072:
1063:
1058:
1046:
1025:Alpha Circinids
1013:
917:Circinus Galaxy
821:
803:
787:
778:
769:: the smaller,
648:magnetic fields
604:
598:
585:
568:
564:
561:right ascension
549:Eugène Delporte
510:
508:Characteristics
484:introduced the
478:
466:Alpha Circinids
458:Circinus Galaxy
331:
328:
309:
305:
301:
297:
293:
286:
278:Alpha Circinids
263:Messier objects
215:
167:
163:
159:Right ascension
117:
113:
111:
78:
74:
48:
26:
17:
12:
11:
5:
4857:
4847:
4846:
4841:
4836:
4821:
4820:
4808:
4796:
4784:
4772:
4749:
4748:
4746:
4745:
4740:
4735:
4730:
4725:
4720:
4715:
4710:
4705:
4700:
4695:
4690:
4685:
4680:
4674:
4671:
4670:
4662:
4661:
4654:
4647:
4639:
4630:
4629:
4626:
4625:
4623:
4622:
4617:
4612:
4607:
4602:
4600:Phoenicopterus
4597:
4591:
4588:
4587:
4585:
4584:
4576:
4573:
4572:
4570:
4569:
4564:
4559:
4554:
4549:
4544:
4539:
4534:
4529:
4524:
4519:
4514:
4509:
4504:
4499:
4494:
4489:
4484:
4479:
4474:
4469:
4464:
4459:
4457:Musca Borealis
4454:
4449:
4444:
4439:
4434:
4429:
4424:
4419:
4414:
4409:
4404:
4399:
4394:
4389:
4384:
4379:
4374:
4372:Custos Messium
4369:
4364:
4359:
4354:
4349:
4344:
4339:
4334:
4329:
4324:
4319:
4313:
4310:
4309:
4301:
4300:
4293:
4286:
4278:
4271:
4270:
4267:
4266:
4264:
4263:
4258:
4253:
4248:
4243:
4238:
4233:
4228:
4223:
4218:
4213:
4208:
4203:
4198:
4193:
4188:
4179:
4174:
4169:
4164:
4159:
4154:
4149:
4147:Canes Venatici
4140:
4131:
4126:
4121:
4119:Camelopardalis
4112:
4107:
4102:
4097:
4092:
4087:
4082:
4077:
4072:
4067:
4062:
4053:
4051:Coma Berenices
4044:
4039:
4029:
4026:
4025:
4020:
4019:
4012:
4005:
3997:
3990:
3989:
3986:
3985:
3975:
3972:
3971:
3969:
3968:
3963:
3958:
3953:
3948:
3943:
3938:
3933:
3928:
3923:
3918:
3913:
3908:
3903:
3898:
3893:
3888:
3883:
3878:
3873:
3868:
3863:
3858:
3853:
3848:
3843:
3838:
3833:
3828:
3823:
3818:
3813:
3808:
3803:
3798:
3793:
3788:
3783:
3778:
3773:
3768:
3763:
3758:
3753:
3748:
3743:
3738:
3733:
3727:
3724:
3723:
3714:
3713:
3706:
3699:
3691:
3684:
3683:
3678:
3677:
3670:
3663:
3655:
3646:
3645:
3643:
3642:
3636:
3633:
3632:
3630:
3629:
3624:
3619:
3614:
3609:
3604:
3599:
3594:
3589:
3584:
3579:
3574:
3569:
3564:
3559:
3554:
3549:
3544:
3539:
3534:
3529:
3524:
3519:
3514:
3509:
3504:
3499:
3494:
3489:
3484:
3479:
3474:
3469:
3464:
3459:
3454:
3449:
3444:
3439:
3434:
3429:
3424:
3419:
3414:
3409:
3404:
3399:
3394:
3389:
3384:
3379:
3374:
3369:
3364:
3359:
3354:
3349:
3344:
3339:
3334:
3329:
3324:
3319:
3314:
3312:Coma Berenices
3309:
3304:
3299:
3294:
3289:
3284:
3279:
3274:
3269:
3264:
3259:
3254:
3252:Canes Venatici
3249:
3244:
3242:Camelopardalis
3239:
3234:
3229:
3224:
3219:
3214:
3209:
3204:
3199:
3194:
3188:
3185:
3184:
3176:
3175:
3168:
3161:
3153:
3144:
3143:
3133:
3130:
3129:
3126:
3125:
3123:
3122:
3116:
3114:
3104:
3103:
3100:
3099:
3097:
3096:
3090:
3088:
3078:
3077:
3074:
3073:
3071:
3070:
3064:
3062:
3052:
3051:
3048:
3047:
3045:
3044:
3038:
3036:
3026:
3025:
3022:
3021:
3019:
3018:
3013:
3008:
3003:
2997:
2995:
2991:
2990:
2988:
2987:
2981:
2979:
2973:
2972:
2970:
2969:
2963:
2961:
2955:
2954:
2952:
2951:
2946:
2941:
2936:
2930:
2928:
2922:
2921:
2919:
2918:
2913:
2908:
2903:
2898:
2893:
2888:
2883:
2877:
2875:
2866:
2860:
2859:
2854:
2851:
2850:
2843:
2842:
2835:
2828:
2820:
2814:
2813:
2806:
2805:External links
2803:
2800:
2799:
2792:
2774:
2745:
2715:
2708:
2687:
2674:10.1086/425145
2634:
2581:
2554:
2524:
2518:10.1086/309767
2480:
2450:
2418:
2382:
2321:
2308:10.1086/305150
2268:
2261:
2243:
2236:
2216:
2209:
2191:
2184:
2163:
2156:
2144:Moore, Patrick
2131:
2124:
2100:
2061:(1): 219–237.
2041:
2011:
1981:
1951:
1923:
1866:
1839:
1786:
1759:
1731:
1704:
1697:
1670:
1663:
1638:
1612:
1593:"Zeta Circini"
1584:
1556:
1528:
1522:10.1086/319031
1484:
1477:
1452:
1421:
1414:
1385:
1366:"Beta Circini"
1357:
1350:
1322:
1287:
1280:
1259:
1252:
1238:Moore, Patrick
1212:
1180:
1153:
1124:
1092:
1060:
1059:
1057:
1054:
1053:
1052:
1045:
1042:
1012:
1011:Meteor showers
1009:
933:Seyfert galaxy
929:galactic plane
910:averted vision
847:, also called
820:
817:
801:
785:
776:
624:Alpha Centauri
597:
594:
584:
581:
509:
506:
477:
474:
462:Seyfert galaxy
420:-like planet.
356:. Its name is
337:
336:
314:
313:
288:
287:constellations
282:
281:
275:
273:Meteor showers
269:
268:
265:
259:
258:
252:
251:Brightest star
248:
247:
244:
240:
239:
236:
232:
231:
228:
221:
220:
217:
205:
204:
201:
195:
194:
187:
181:
180:
177:
171:
170:
161:
155:
154:
149:
145:
144:
72:
68:
67:
64:
58:
57:
54:
50:
49:
44:
36:
35:
15:
9:
6:
4:
3:
2:
4856:
4845:
4842:
4840:
4837:
4835:
4832:
4831:
4829:
4819:
4809:
4807:
4797:
4795:
4785:
4783:
4778:
4773:
4771:
4761:
4760:
4757:
4744:
4741:
4739:
4736:
4734:
4731:
4729:
4726:
4724:
4721:
4719:
4716:
4714:
4711:
4709:
4706:
4704:
4701:
4699:
4696:
4694:
4691:
4689:
4686:
4684:
4681:
4679:
4676:
4675:
4672:
4667:
4660:
4655:
4653:
4648:
4646:
4641:
4640:
4637:
4621:
4620:Vultur volans
4618:
4616:
4615:Vultur cadens
4613:
4611:
4608:
4606:
4603:
4601:
4598:
4596:
4593:
4592:
4589:
4583:
4582:
4578:
4577:
4574:
4568:
4565:
4563:
4560:
4558:
4555:
4553:
4550:
4548:
4545:
4543:
4540:
4538:
4535:
4533:
4530:
4528:
4525:
4523:
4520:
4518:
4515:
4513:
4510:
4508:
4505:
4503:
4500:
4498:
4497:Ramus Pomifer
4495:
4493:
4490:
4488:
4485:
4483:
4480:
4478:
4475:
4473:
4470:
4468:
4465:
4463:
4460:
4458:
4455:
4453:
4452:Mons Maenalus
4450:
4448:
4445:
4443:
4440:
4438:
4435:
4433:
4430:
4428:
4427:Lochium Funis
4425:
4423:
4420:
4418:
4415:
4413:
4412:Leo Palatinus
4410:
4408:
4405:
4403:
4400:
4398:
4395:
4393:
4390:
4388:
4385:
4383:
4380:
4378:
4375:
4373:
4370:
4368:
4365:
4363:
4360:
4358:
4355:
4353:
4350:
4348:
4345:
4343:
4340:
4338:
4335:
4333:
4330:
4328:
4325:
4323:
4320:
4318:
4315:
4314:
4311:
4306:
4299:
4294:
4292:
4287:
4285:
4280:
4279:
4276:
4272:
4262:
4259:
4257:
4254:
4252:
4249:
4247:
4244:
4242:
4239:
4237:
4234:
4232:
4229:
4227:
4224:
4222:
4219:
4217:
4214:
4212:
4209:
4207:
4204:
4202:
4199:
4197:
4194:
4192:
4189:
4187:
4183:
4180:
4178:
4175:
4173:
4170:
4168:
4165:
4163:
4160:
4158:
4155:
4153:
4150:
4148:
4144:
4141:
4139:
4135:
4132:
4130:
4127:
4125:
4122:
4120:
4116:
4113:
4111:
4108:
4106:
4103:
4101:
4098:
4096:
4093:
4091:
4088:
4086:
4083:
4081:
4078:
4076:
4073:
4071:
4068:
4066:
4063:
4061:
4057:
4054:
4052:
4048:
4045:
4043:
4040:
4038:
4034:
4031:
4030:
4027:
4018:
4013:
4011:
4006:
4004:
3999:
3998:
3995:
3991:
3983:
3973:
3967:
3964:
3962:
3959:
3957:
3954:
3952:
3949:
3947:
3944:
3942:
3939:
3937:
3934:
3932:
3929:
3927:
3924:
3922:
3919:
3917:
3914:
3912:
3909:
3907:
3904:
3902:
3899:
3897:
3894:
3892:
3889:
3887:
3884:
3882:
3879:
3877:
3874:
3872:
3869:
3867:
3864:
3862:
3859:
3857:
3854:
3852:
3849:
3847:
3844:
3842:
3839:
3837:
3834:
3832:
3829:
3827:
3824:
3822:
3819:
3817:
3814:
3812:
3809:
3807:
3804:
3802:
3799:
3797:
3794:
3792:
3789:
3787:
3784:
3782:
3779:
3777:
3774:
3772:
3769:
3767:
3764:
3762:
3759:
3757:
3754:
3752:
3749:
3747:
3744:
3742:
3739:
3737:
3734:
3732:
3729:
3728:
3725:
3720:
3712:
3707:
3705:
3700:
3698:
3693:
3692:
3689:
3685:
3676:
3671:
3669:
3664:
3662:
3657:
3656:
3653:
3641:
3638:
3637:
3634:
3628:
3625:
3623:
3620:
3618:
3615:
3613:
3610:
3608:
3605:
3603:
3600:
3598:
3595:
3593:
3590:
3588:
3585:
3583:
3580:
3578:
3575:
3573:
3570:
3568:
3565:
3563:
3560:
3558:
3555:
3553:
3550:
3548:
3545:
3543:
3540:
3538:
3535:
3533:
3530:
3528:
3525:
3523:
3520:
3518:
3515:
3513:
3510:
3508:
3505:
3503:
3500:
3498:
3495:
3493:
3490:
3488:
3485:
3483:
3480:
3478:
3475:
3473:
3470:
3468:
3465:
3463:
3460:
3458:
3455:
3453:
3450:
3448:
3445:
3443:
3440:
3438:
3435:
3433:
3430:
3428:
3425:
3423:
3420:
3418:
3415:
3413:
3410:
3408:
3405:
3403:
3400:
3398:
3395:
3393:
3390:
3388:
3385:
3383:
3380:
3378:
3375:
3373:
3370:
3368:
3365:
3363:
3360:
3358:
3355:
3353:
3350:
3348:
3345:
3343:
3340:
3338:
3335:
3333:
3330:
3328:
3325:
3323:
3320:
3318:
3315:
3313:
3310:
3308:
3305:
3303:
3300:
3298:
3295:
3293:
3290:
3288:
3285:
3283:
3280:
3278:
3275:
3273:
3270:
3268:
3265:
3263:
3260:
3258:
3255:
3253:
3250:
3248:
3245:
3243:
3240:
3238:
3235:
3233:
3230:
3228:
3225:
3223:
3220:
3218:
3215:
3213:
3210:
3208:
3205:
3203:
3200:
3198:
3195:
3193:
3190:
3189:
3186:
3182:
3174:
3169:
3167:
3162:
3160:
3155:
3154:
3151:
3141:
3131:
3121:
3118:
3117:
3115:
3113:
3109:
3105:
3095:
3092:
3091:
3089:
3087:
3083:
3079:
3069:
3066:
3065:
3063:
3061:
3060:Star clusters
3057:
3053:
3043:
3040:
3039:
3037:
3035:
3031:
3027:
3017:
3014:
3012:
3009:
3007:
3004:
3002:
2999:
2998:
2996:
2992:
2986:
2983:
2982:
2980:
2978:
2974:
2968:
2965:
2964:
2962:
2960:
2956:
2950:
2947:
2945:
2942:
2940:
2937:
2935:
2932:
2931:
2929:
2927:
2923:
2917:
2914:
2912:
2909:
2907:
2904:
2902:
2899:
2897:
2894:
2892:
2889:
2887:
2884:
2882:
2879:
2878:
2876:
2874:
2870:
2867:
2865:
2861:
2857:
2852:
2848:
2841:
2836:
2834:
2829:
2827:
2822:
2821:
2818:
2812:
2809:
2808:
2795:
2789:
2785:
2778:
2763:
2756:
2749:
2733:
2729:
2725:
2719:
2711:
2705:
2701:
2694:
2692:
2683:
2679:
2675:
2671:
2667:
2663:
2658:
2653:
2649:
2645:
2638:
2630:
2626:
2622:
2618:
2614:
2610:
2605:
2600:
2596:
2592:
2585:
2577:
2573:
2569:
2565:
2558:
2542:
2538:
2534:
2528:
2519:
2514:
2510:
2506:
2502:
2498:
2494:
2487:
2485:
2468:
2464:
2460:
2454:
2439:
2435:
2434:
2429:
2422:
2406:
2402:
2398:
2397:
2392:
2386:
2378:
2374:
2369:
2364:
2360:
2356:
2351:
2346:
2342:
2338:
2337:
2332:
2325:
2317:
2313:
2309:
2305:
2301:
2297:
2292:
2287:
2284:(2): 650–65.
2283:
2279:
2272:
2264:
2258:
2254:
2247:
2239:
2233:
2229:
2228:
2220:
2212:
2206:
2202:
2195:
2187:
2181:
2177:
2170:
2168:
2159:
2153:
2149:
2145:
2138:
2136:
2127:
2121:
2117:
2113:
2107:
2105:
2096:
2092:
2087:
2082:
2078:
2074:
2069:
2064:
2060:
2056:
2052:
2045:
2030:on 2014-02-02
2029:
2025:
2021:
2020:"HD 129445 b"
2015:
2000:on 2014-02-02
1999:
1995:
1991:
1990:"HD 134060 c"
1985:
1970:on 2014-02-02
1969:
1965:
1961:
1960:"HD 134060 b"
1955:
1939:
1938:
1933:
1927:
1919:
1915:
1911:
1907:
1903:
1899:
1894:
1889:
1886:(2): 535–40.
1885:
1881:
1877:
1870:
1854:
1853:AAVSO Website
1850:
1843:
1835:
1831:
1827:
1823:
1819:
1815:
1810:
1805:
1801:
1797:
1790:
1774:
1773:AAVSO Website
1770:
1763:
1747:
1746:
1741:
1735:
1719:
1718:AAVSO Website
1715:
1708:
1700:
1694:
1690:
1689:
1681:
1679:
1677:
1675:
1666:
1660:
1656:
1649:
1647:
1645:
1643:
1626:
1622:
1616:
1600:
1599:
1594:
1588:
1572:
1571:
1566:
1565:"Eta Circini"
1560:
1544:
1543:
1538:
1532:
1523:
1518:
1514:
1510:
1507:(2): 889–99.
1506:
1502:
1495:
1488:
1480:
1474:
1470:
1466:
1462:
1456:
1440:
1439:
1434:
1428:
1426:
1417:
1411:
1407:
1402:
1401:
1392:
1390:
1373:
1372:
1367:
1361:
1353:
1347:
1343:
1339:
1335:
1329:
1327:
1310:
1306:
1302:
1296:
1294:
1292:
1283:
1277:
1273:
1269:
1263:
1255:
1249:
1245:
1244:
1239:
1233:
1231:
1229:
1227:
1225:
1223:
1221:
1219:
1217:
1208:
1204:
1200:
1196:
1195:
1190:
1184:
1168:
1164:
1157:
1142:
1138:
1134:
1128:
1113:
1109:
1105:
1099:
1097:
1080:
1076:
1070:
1068:
1066:
1061:
1051:
1048:
1047:
1041:
1038:
1034:
1030:
1026:
1022:
1021:meteor shower
1019:of an annual
1018:
1008:
1006:
1002:
998:
994:
989:
987:
983:
979:
975:
971:
967:
963:
959:
953:
949:
944:
940:
938:
934:
930:
926:
925:spiral galaxy
922:
918:
913:
911:
906:
902:
898:
894:
886:
882:
878:
876:
872:
868:
864:
860:
859:John Herschel
855:
850:
846:
842:
838:
837:open clusters
830:
825:
816:
814:
810:
805:
799:
795:
791:
783:
779:
772:
768:
764:
759:
756:
751:
747:
743:
739:
735:
731:
730:Theta Circini
726:
724:
720:
716:
714:
710:
706:
702:
698:
694:
693:Delta Circini
690:
686:
682:
681:Gamma Circini
678:
676:
672:
668:
664:
660:
657:
653:
649:
645:
641:
637:
633:
632:spectral type
629:
625:
621:
617:
614:star with an
613:
612:main sequence
609:
608:Alpha Circini
603:
589:
580:
578:
574:
562:
558:
554:
550:
546:
543:
539:
535:
534:Beta Centauri
531:
527:
523:
519:
515:
505:
503:
499:
495:
491:
487:
486:constellation
483:
473:
471:
470:meteor shower
467:
463:
459:
455:
454:spiral galaxy
451:
448:
444:
441:
437:
432:
430:
426:
423:
419:
415:
411:
407:
403:
399:
395:
391:
387:
383:
379:
378:Alpha Circini
375:
371:
367:
363:
359:
355:
351:
347:
346:constellation
343:
335:
327:
325:
321:
315:
312:
308:
304:
300:
296:
292:
289:
283:
279:
276:
274:
270:
266:
264:
260:
256:
253:
249:
245:
241:
237:
233:
229:
227:
222:
218:
214:
210:
206:
202:
200:
196:
192:
189:93 sq. deg. (
188:
186:
182:
178:
176:
172:
162:
160:
156:
153:
150:
146:
141:
110:
105:
73:
71:Pronunciation
69:
65:
63:
59:
55:
51:
47:
42:
37:
34:Constellation
32:
24:
19:
4818:Solar System
4708:Microscopium
4605:Serpentarius
4580:
4579:
4357:Cancer Minor
4221:Microscopium
4200:
4181:
4142:
4133:
4114:
4055:
4046:
4032:
3721:after 150 AD
3457:Microscopium
3301:
3011:PSR B1509−58
3001:Circinus X-1
2783:
2777:
2765:. Retrieved
2748:
2736:. Retrieved
2732:the original
2727:
2718:
2699:
2647:
2643:
2637:
2597:(36): 17pp.
2594:
2590:
2584:
2570:(872): 1–2.
2567:
2563:
2557:
2545:. Retrieved
2541:the original
2536:
2527:
2500:
2496:
2471:. Retrieved
2467:the original
2453:
2441:. Retrieved
2431:
2421:
2409:. Retrieved
2394:
2385:
2340:
2334:
2324:
2281:
2277:
2271:
2252:
2246:
2226:
2219:
2200:
2194:
2175:
2147:
2115:
2058:
2054:
2044:
2032:. Retrieved
2028:the original
2023:
2014:
2002:. Retrieved
1998:the original
1993:
1984:
1972:. Retrieved
1968:the original
1963:
1954:
1942:. Retrieved
1935:
1926:
1883:
1879:
1869:
1857:. Retrieved
1852:
1849:"BX Circini"
1842:
1799:
1795:
1789:
1777:. Retrieved
1772:
1769:"BP Circini"
1762:
1750:. Retrieved
1743:
1740:"AX Circini"
1734:
1722:. Retrieved
1717:
1707:
1687:
1654:
1629:. Retrieved
1624:
1615:
1603:. Retrieved
1596:
1587:
1575:. Retrieved
1568:
1559:
1547:. Retrieved
1540:
1531:
1504:
1500:
1487:
1468:
1461:Ridpath, Ian
1455:
1443:. Retrieved
1436:
1399:
1376:. Retrieved
1369:
1360:
1341:
1334:Ridpath, Ian
1313:. Retrieved
1308:
1271:
1262:
1242:
1198:
1192:
1183:
1171:. Retrieved
1166:
1156:
1144:. Retrieved
1140:
1133:Ridpath, Ian
1127:
1115:. Retrieved
1111:
1104:Ridpath, Ian
1083:. Retrieved
1078:
1014:
990:
974:PSR B1509-58
966:neutron star
962:X-ray binary
958:Circinus X-1
956:
914:
912:to be seen.
890:
865:, nearby in
854:star hopping
834:
809:GKF2010 MN18
806:
784:(0.15 M
760:
727:
723:Zeta Circini
717:
679:
675:Beta Circini
663:orange dwarf
605:
512:Bordered by
511:
489:
479:
440:open cluster
433:
406:white dwarfs
350:southern sky
341:
340:
329:
317:
257: (3.19)
108:
53:Abbreviation
18:
4806:Outer space
4794:Spaceflight
4743:Telescopium
4397:Hippocampus
4256:Telescopium
4182:de Lacaille
3931:Sagittarius
3786:Capricornus
3781:Canis Minor
3776:Canis Major
3582:Telescopium
3547:Sagittarius
3267:Capricornus
3262:Canis Minor
3257:Canis Major
3042:HD 129445 b
1714:"T Circini"
1465:Tirion, Wil
1338:Tirion, Wil
1268:Motz, Lloyd
1035:. In 2011,
794:HD 129445 b
782:HD 134060 c
771:HD 134060 b
748:is another
719:Eta Circini
689:yellow star
659:star system
620:light-years
538:declination
224:Stars with
175:Declination
4828:Categories
4698:Horologium
4668:after 1756
4512:Scarabaeus
4482:Polophylax
4342:Argo Navis
4211:Horologium
4065:Chamaeleon
3961:Ursa Minor
3956:Ursa Major
3951:Triangulum
3791:Cassiopeia
3751:Argo Navis
3607:Ursa Minor
3602:Ursa Major
3587:Triangulum
3392:Horologium
3297:Chamaeleon
3277:Cassiopeia
3034:Exoplanets
2767:31 January
2738:31 January
2547:2 February
2503:: L43–46.
2443:31 January
2068:1508.06288
2034:31 January
2004:31 January
1974:31 January
1944:25 October
1859:24 January
1779:24 January
1752:26 October
1724:24 January
1631:31 January
1605:26 October
1577:26 October
1549:25 October
1315:26 October
1301:Kaler, Jim
1173:12 October
1141:Star Tales
1112:Star Tales
1108:"Circinus"
1056:References
1029:Queensland
1005:BW Circini
1001:BY Circini
970:black hole
897:Bernes 145
755:BX Circini
746:BP Circini
738:AX Circini
705:blue stars
667:arcseconds
610:, a white
573:culminates
402:BX Circini
394:AX Circini
380:, with an
199:Main stars
4770:Astronomy
4733:Reticulum
4432:Lumbricus
4177:Vulpecula
4157:Leo Minor
4138:Reticulum
4129:Monoceros
3896:Ophiuchus
3836:Delphinus
3796:Centaurus
3731:Andromeda
3627:Vulpecula
3537:Reticulum
3482:Ophiuchus
3462:Monoceros
3422:Leo Minor
3347:Delphinus
3282:Centaurus
3192:Andromeda
2629:118452794
2604:1205.1805
2411:8 January
2350:1206.4102
2095:0035-8711
1809:1307.7123
997:X Circini
921:Milky Way
875:Pismis 20
790:HD 129445
763:HD 134060
734:T Circini
636:strontium
514:Centaurus
494:compasses
490:le Compas
468:(ACI), a
436:Milky Way
422:Supernova
414:HD 129445
410:HD 134060
291:Centaurus
285:Bordering
213:Flamsteed
148:Symbolism
112:genitive
109:Círcinus,
4834:Circinus
4738:Sculptor
4688:Circinus
4527:Solarium
4477:Phaethon
4407:Jordanus
4362:Cerberus
4347:Asterion
4327:Antinous
4317:Anguilla
4251:Sculptor
4201:Circinus
4143:Hevelius
4134:Habrecht
4115:Plancius
3982:Category
3936:Scorpius
3861:Hercules
3851:Eridanus
3846:Equuleus
3736:Aquarius
3557:Sculptor
3552:Scorpius
3387:Hercules
3367:Eridanus
3362:Equuleus
3302:Circinus
3207:Aquarius
3140:Category
3112:Galaxies
3094:NGC 5315
3068:NGC 5823
2926:Variable
2682:14766056
2377:41853947
2316:16365899
2146:(1997).
2114:(1999).
1918:16753328
1834:34133110
1467:(2001).
1340:(2017).
1240:(2011).
1044:See also
893:NGC 5315
871:NGC 5715
863:NGC 5822
849:Caldwell
845:NGC 5823
829:NGC 5823
661:with an
652:variable
644:europium
640:chromium
583:Features
569:15 30.2
565:13 38.4
542:latitude
450:NGC 5315
445:and the
443:NGC 5823
386:variable
366:drafting
342:Circinus
168:15 30.2
164:13 38.4
62:Genitive
29:Circinus
4756:Portals
4610:Xiphias
4547:Testudo
4472:Patella
4172:Sextans
4152:Lacerta
4124:Columba
4100:Phoenix
3941:Serpens
3926:Sagitta
3911:Perseus
3906:Pegasus
3801:Cepheus
3719:Ptolemy
3572:Sextans
3567:Serpens
3542:Sagitta
3507:Phoenix
3502:Perseus
3497:Pegasus
3412:Lacerta
3307:Columba
3287:Cepheus
3086:Nebulae
2662:Bibcode
2609:Bibcode
2572:Bibcode
2505:Bibcode
2473:30 June
2355:Bibcode
2296:Bibcode
2073:Bibcode
1898:Bibcode
1814:Bibcode
1627:. AAVSO
1509:Bibcode
1445:30 June
1378:30 June
1203:Bibcode
1201:: 469.
1146:27 June
1117:27 June
1085:27 June
1017:radiant
798:Jupiter
713:parsecs
685:Be star
553:polygon
476:History
418:Jupiter
362:compass
348:in the
322:° and −
226:planets
152:Compass
66:Circini
4723:Pictor
4718:Octans
4693:Fornax
4683:Caelum
4678:Antlia
4552:Tigris
4462:Noctua
4417:Lilium
4402:Hirudo
4387:Gallus
4337:Aranea
4241:Puppis
4236:Pictor
4231:Octans
4206:Fornax
4196:Carina
4191:Caelum
4186:Antlia
4184:1763:
4167:Scutum
4145:1683:
4136:1621:
4117:1613:
4110:Volans
4105:Tucana
4080:Hydrus
4070:Dorado
4058:1596:
4049:1536:
3946:Taurus
3916:Pisces
3856:Gemini
3831:Cygnus
3826:Crater
3821:Corvus
3771:Cancer
3766:Boötes
3761:Auriga
3741:Aquila
3622:Volans
3597:Tucana
3577:Taurus
3562:Scutum
3527:Puppis
3517:Pisces
3512:Pictor
3477:Octans
3402:Hydrus
3377:Gemini
3372:Fornax
3352:Dorado
3342:Cygnus
3332:Crater
3327:Corvus
3272:Carina
3247:Cancer
3237:Caelum
3232:Boötes
3227:Auriga
3212:Aquila
3197:Antlia
2985:129445
2790:
2706:
2680:
2627:
2407:. 2007
2375:
2314:
2259:
2234:
2207:
2182:
2154:
2122:
2093:
1916:
1832:
1695:
1661:
1475:
1412:
1348:
1278:
1250:
1023:, the
986:SN 185
960:is an
839:and a
835:Three
736:, and
656:binary
559:, the
456:, the
425:SN 185
416:has a
4782:Stars
4728:Pyxis
4713:Norma
4703:Mensa
4567:Vespa
4447:Manis
4442:Malus
4422:Limax
4377:Felis
4367:Chara
4322:Anser
4246:Pyxis
4226:Norma
4216:Mensa
4090:Musca
4085:Indus
4047:Vopel
3966:Virgo
3901:Orion
3886:Lupus
3881:Libra
3876:Lepus
3866:Hydra
3841:Draco
3806:Cetus
3756:Aries
3617:Virgo
3532:Pyxis
3487:Orion
3472:Norma
3467:Musca
3452:Mensa
3437:Lupus
3432:Libra
3427:Lepus
3407:Indus
3397:Hydra
3357:Draco
3292:Cetus
3222:Aries
3016:WR 66
2994:Other
2873:Bayer
2864:Stars
2758:(PDF)
2678:S2CID
2652:arXiv
2625:S2CID
2599:arXiv
2537:AAVSO
2373:S2CID
2345:arXiv
2312:S2CID
2286:arXiv
2063:arXiv
1914:S2CID
1888:arXiv
1830:S2CID
1804:arXiv
1497:(PDF)
1408:–62.
1309:Stars
978:X-ray
899:is a
867:Lupus
709:Venus
596:Stars
545:30° N
530:Alpha
526:Lupus
518:Musca
498:Norma
429:novae
396:is a
370:Pyxis
358:Latin
311:Lupus
307:Norma
295:Musca
280:(ACI)
255:α Cir
216:stars
209:Bayer
4595:Apis
4507:Rosa
4352:Bufo
4332:Apes
4261:Vela
4162:Lynx
4095:Pavo
4075:Grus
4060:Apus
4037:Crux
3891:Lyra
3612:Vela
3492:Pavo
3447:Lyra
3442:Lynx
3382:Grus
3337:Crux
3202:Apus
3179:The
3006:MN18
2967:5632
2788:ISBN
2769:2013
2762:NASA
2740:2013
2704:ISBN
2549:2013
2475:2012
2463:NASA
2445:2013
2438:NASA
2413:2009
2405:NASA
2257:ISBN
2232:ISBN
2205:ISBN
2180:ISBN
2152:ISBN
2120:ISBN
2091:ISSN
2036:2013
2006:2013
1976:2013
1946:2012
1861:2014
1781:2014
1754:2012
1726:2014
1693:ISBN
1659:ISBN
1633:2013
1607:2012
1579:2012
1551:2012
1473:ISBN
1447:2012
1410:ISBN
1380:2012
1346:ISBN
1317:2012
1276:ISBN
1248:ISBN
1175:2012
1148:2012
1119:2012
1087:2012
993:nova
952:jets
946:The
903:and
901:dark
796:, a
642:and
567:and
532:and
522:Apus
434:The
360:for
332:July
299:Apus
191:85th
185:Area
3871:Leo
3746:Ara
3417:Leo
3217:Ara
2670:doi
2648:613
2617:doi
2595:757
2568:872
2513:doi
2501:454
2363:doi
2341:425
2304:doi
2282:493
2081:doi
2059:454
1906:doi
1884:395
1822:doi
1800:146
1517:doi
1505:548
1406:160
166:to
125:ɜːr
86:ɜːr
56:Cir
4830::
4035::
2977:HD
2959:HR
2949:FM
2944:BX
2939:BP
2934:AX
2760:.
2726:.
2690:^
2676:.
2668:.
2660:.
2646:.
2623:.
2615:.
2607:.
2593:.
2566:.
2535:.
2511:.
2499:.
2495:.
2483:^
2461:.
2436:.
2430:.
2403:/
2399:.
2393:.
2371:.
2361:.
2353:.
2339:.
2333:.
2310:.
2302:.
2294:.
2280:.
2166:^
2134:^
2103:^
2089:.
2079:.
2071:.
2057:.
2053:.
2022:.
1992:.
1962:.
1934:.
1912:.
1904:.
1896:.
1882:.
1878:.
1851:.
1828:.
1820:.
1812:.
1798:.
1771:.
1742:.
1716:.
1673:^
1641:^
1623:.
1595:.
1567:.
1539:.
1515:.
1503:.
1499:.
1463:;
1435:.
1424:^
1388:^
1368:.
1336:;
1325:^
1307:.
1303:.
1290:^
1215:^
1199:30
1197:.
1165:.
1139:.
1135:.
1110:.
1106:.
1095:^
1077:.
1064:^
939:.
732:,
671:AU
638:,
520:,
516:,
326:°.
324:90
320:30
137:aɪ
4758::
4658:e
4651:t
4644:v
4297:e
4290:t
4283:v
4016:e
4009:t
4002:v
3710:e
3703:t
3696:v
3674:e
3667:t
3660:v
3172:e
3165:t
3158:v
2916:θ
2911:η
2906:ζ
2901:ε
2896:δ
2891:γ
2886:β
2881:α
2839:e
2832:t
2825:v
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2771:.
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2684:.
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2664::
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2097:.
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2008:.
1978:.
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1920:.
1908::
1900::
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267:0
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230:2
219:9
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203:3
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134:n
131:ɪ
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98:ə
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