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526:. It was constructed from 1968 to 1971 and inaugurated on 1 August 1972. A major technical difficulty in building a radio telescope of 100 m diameter was how to deal with the deformation of the mirror due to gravity when it is rotated to point in a different direction. The mirror must have a precise
530:
shape to focus the radio waves, but a conventionally-designed dish of this size would "sag" slightly when rotated so the mirror loses its parabolic shape. The
Effelsberg telescope uses a novel computer-designed mirror support structure which deforms in such a way that the deformed mirror will always
535:
suspended in front of the mirror is moved slightly by the computer control system as the telescope is rotated to keep it at the focus. Tests after completion of the telescope showed that the intended accuracy of the mirror surface of 1 mm had not only been met, but exceeded significantly.
483:. The boundary is a stream, the Effelsberger Bach, which runs only a few metres east of the telescope. The Effelsberger Bach is 6.5 km long, flowing from the Effelsberger Wald into the Sahrbach, which in turn flows south and into the
890:
Haslam, C. G. T.; Klein, U.; Salter, C. J.; Stoffel, H.; Wilson, W. E.; Cleary, M. N.; Cooke, D. J.; Thomasson, P. (1981). "A 408 MHz all-sky continuum survey. I - Observations at southern declinations an".
2002:
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About 45% of the observing time is available to external astronomers. The
Effelsberg 100-m telescope was involved in several surveys, including the one at 408 MHz (73 cm) by Haslam et al.
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A hiking path leads past the telescope; in 2004 part of this was turned into a planet trail with information panels about the
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447:. For 29 years the Effelsberg Radio Telescope was the largest fully steerable radio telescope on Earth, surpassing the
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The telescope is located about 1.3 km northeast of
Effelsberg, a southeastern part of the town of
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479:. It is less than 300 m west of the 398 m high Hünerberg, which is in neighbouring
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880:, Astronomy and Astrophysics Supplement Series, vol. 47, Jan. 1982, p. 1, 2, 4–51, 53–142.
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take a parabolic shape. The focus will move during such deformation, and the
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Special
Astrophysical Observatory of the Russian Academy of Science
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A 408 MHz all-sky continuum survey. II – The atlas of contour maps
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Official website of the Max Planck
Institute for Radio Astronomy
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Haslam, C. G. T.; Salter, C. J.; Stoffel, H.; Wilson, W. E.,
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1312:
Combined Array for
Research in Millimeter-wave Astronomy
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379:
919:"Home | Max Planck Institut für Radioastronomie"
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Dr
Norbert Junkes video interview on Astrotalkuk.org
256:
408, 86,000 MHz (73.48, 0.35 cm)
49:. Unsourced material may be challenged and removed.
510:The Effelsberg radio telescope is operated by the
2361:Buildings and structures in Euskirchen (district)
1416:Multi-Element Radio Linked Interferometer Network
2332:
498:. The trail ends at the 39 cm model of the
2017:
1302:Canadian Hydrogen Intensity Mapping Experiment
588:Secondary Mirror Diameter (Gregory-Reflector)
2003:
986:
1292:Australian Square Kilometre Array Pathfinder
451:in the UK. In 2000, it was surpassed by the
388:Location of Effelsberg 100-m Radio Telescope
16:Radio telescope in Bad Münstereifel, Germany
1086:500 meter Aperture Spherical Telescope
2371:Buildings and structures completed in 1971
2010:
1996:
993:
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642:– at 3.5 mm wavelength (86 GHz)
626:– at 21 cm wavelength (1.4 GHz)
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331:
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109:Learn how and when to remove this message
1406:Molonglo Observatory Synthesis Telescope
1243:Warkworth Radio Astronomical Observatory
634:– at 3 cm wavelength (10 GHz)
512:Max Planck Institute for Radio Astronomy
224:Max Planck Institute for Radio Astronomy
829:
745:Power Output of the 4 Elevation Drives
2333:
705:Power Output of the 16 Azimuth Drives
315:7,850 m (84,500 sq ft)
1991:
1907:Cosmic microwave background radiation
1644:Pushchino Radio Astronomy Observatory
1366:Large Latin American Millimeter Array
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1972:
1620:National Radio Astronomy Observatory
1514:Westerbork Synthesis Radio Telescope
564:Number of Surface Elements (Panels)
302:100 m (328 ft 1 in)
47:adding citations to reliable sources
18:
2351:1971 establishments in West Germany
1612:Mullard Radio Astronomy Observatory
1000:
457:Robert C. Byrd Green Bank Telescope
13:
1446:Northern Extended Millimeter Array
966:Bill Keel's "Telescopes I've seen"
505:
58:"Effelsberg 100-m Radio Telescope"
14:
2382:
1282:Australia Telescope Compact Array
1104:Caltech Submillimeter Observatory
1047:Very Long Baseline Interferometry
944:
330:30 m (98 ft 5 in)
2319:
1971:
1962:
1961:
769:Height of Track above Sea Level
619:Angular Resolution (Beam Width)
425:Effelsberg 100-m Radio Telescope
399:
378:
371:
122:Effelsberg 100-m Radio Telescope
23:
1336:Giant Metrewave Radio Telescope
1204:UTR-2 decameter radio telescope
713:Radius of Elevation Gear Track
34:needs additional citations for
1436:Northern Cross Radio Telescope
1272:Atacama Large Millimeter Array
911:
883:
870:
854:
543:Technical data of the antenna
1:
816:
812:– at Jodrell Bank Observatory
1886:Gravitational-wave astronomy
1464:Primeval Structure Telescope
580:Focal Length in Prime Focus
502:next to the visitor centre.
466:
7:
1798:Christiaan Alexander Muller
1664:Vermilion River Observatory
1572:Algonquin Radio Observatory
1037:Astronomical interferometer
961:Effelsberg Official Webpage
798:
241:319 m (1,047 ft)
10:
2387:
1138:Large Millimeter Telescope
893:Astronomy and Astrophysics
777:Commencement of Operation
658:Setting Accuracy of Track
572:Shape Accuracy of Surface
2317:
2026:
1957:
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1856:
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1527:
1426:Murchison Widefield Array
1346:Green Bank Interferometer
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1170:RATAN-600 Radio Telescope
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1053:Astronomical radio source
1008:
833:A Dictionary of Astronomy
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1636:Onsala Space Observatory
1628:Nançay Radio Observatory
1604:Jodrell Bank Observatory
1504:Very Long Baseline Array
1180:Sardinia Radio Telescope
805:Stockert Radio Telescope
405:Related media on Commons
1866:Submillimetre astronomy
1478:Australia, South Africa
1330:Event Horizon Telescope
905:1981A&A...100..209H
674:Maximum Rotation Speed
650:Azimuth Track Diameter
524:Max-Planck-Gesellschaft
1588:Green Bank Observatory
1474:Square Kilometre Array
729:– during observations
477:North Rhine-Westphalia
453:Green Bank Observatory
171:North Rhine-Westphalia
1881:High-energy astronomy
1768:Sebastian von Hoerner
1376:Long Wavelength Array
1322:European VLBI Network
1262:Allen Telescope Array
1162:Qitai Radio Telescope
830:Ridpath, Ian (2012).
611:– in Secondary Focus
140:European VLBI Network
2356:Astronomy in Germany
2056:Buchholzbacher Mühle
1949:Solar radio emission
1738:Jocelyn Bell Burnell
1596:Haystack Observatory
1130:Green Bank Telescope
1114:Effelsberg Telescope
788:Arbeitsgemeinschaft
761:Construction Period
637:1.15' (arc minutes)
481:Rhineland-Palatinate
312:Collecting area
281:Telescope style
43:improve this article
2346:Low-Frequency Array
1922:Pulsar timing array
1728:Edward George Bowen
1718:Elizabeth Alexander
1580:Arecibo Observatory
1484:Submillimeter Array
1386:Low-Frequency Array
1356:Korean VLBI Network
1222:Southern Hemisphere
1133:(West Virginia, US)
737:Maximum Tilt Speed
629:9.4' (arc minutes)
548:Reflector Diameter
544:
195: /
123:
1902:Aperture synthesis
1871:Infrared astronomy
1808:Joseph Lade Pawsey
1778:Kenneth Kellermann
1748:Nan Dieter-Conklin
1456:One-Mile Telescope
1235:Parkes Observatory
748:17.5 kW each
708:10.2 kW each
682:Pointing Accuracy
645:10" (arc seconds)
542:
199:50.5247°N 6.8828°E
121:
2328:
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2096:Forsthaus Hülloch
1985:
1984:
1927:Radio propagation
1876:Optical astronomy
1773:Karl Guthe Jansky
1583:(Puerto Rico, US)
1558:
1557:
1350:West Virginia, US
1099:(Puerto Rico, US)
1096:Arecibo Telescope
923:Mpifr-bonn.mpg.de
847:978-0-19-960905-5
796:
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732:from 8.1° to 89°
689:– Blind Pointing
603:– in Prime Focus
575:< 0.5 mm
522:institute of the
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2020:Bad Münstereifel
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1942:HD 164595 signal
1917:Odd radio circle
1895:Related articles
1813:Ruby Payne-Scott
1743:Arthur Covington
1733:Ronald Bracewell
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925:. Archived from
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810:Lovell Telescope
721:Elevation Range
697:– Repeatability
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449:Lovell Telescope
441:Bad Münstereifel
414:edit on Wikidata
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2289:
2287:
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2279:
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2259:
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2239:
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2234:
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2227:
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2222:
2219:
2217:
2214:
2212:
2209:
2207:
2204:
2202:
2199:
2197:
2194:
2192:
2189:
2187:
2184:
2182:
2179:
2177:
2174:
2172:
2169:
2167:
2164:
2162:
2159:
2157:
2154:
2152:
2149:
2147:
2144:
2142:
2139:
2137:
2134:
2132:
2129:
2127:
2124:
2122:
2119:
2117:
2114:
2112:
2109:
2107:
2104:
2102:
2099:
2097:
2094:
2092:
2089:
2087:
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2082:
2079:
2077:
2074:
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2069:
2067:
2064:
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2059:
2057:
2054:
2052:
2049:
2047:
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2039:
2037:
2034:
2032:
2029:
2028:
2025:
2021:
2013:
2008:
2006:
2001:
1999:
1994:
1993:
1990:
1978:
1970:
1968:
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1956:
1950:
1947:
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1935:
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1879:
1877:
1874:
1872:
1869:
1867:
1864:
1863:
1861:
1855:
1849:
1848:Robert Wilson
1846:
1844:
1841:
1839:
1836:
1834:
1833:Govind Swarup
1831:
1829:
1826:
1824:
1821:
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1816:
1814:
1811:
1809:
1806:
1804:
1801:
1799:
1796:
1794:
1791:
1789:
1788:John D. Kraus
1786:
1784:
1783:Frank J. Kerr
1781:
1779:
1776:
1774:
1771:
1769:
1766:
1764:
1763:Antony Hewish
1761:
1759:
1756:
1754:
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1749:
1746:
1744:
1741:
1739:
1736:
1734:
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1605:
1602:
1597:
1594:
1589:
1586:
1581:
1578:
1573:
1570:
1569:
1567:
1565:
1564:Observatories
1561:
1546:
1543:
1536:
1533:
1532:
1530:
1526:
1515:
1512:
1505:
1502:
1495:
1492:
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1475:
1472:
1465:
1462:
1457:
1454:
1447:
1444:
1437:
1434:
1427:
1424:
1417:
1414:
1407:
1404:
1397:
1394:
1387:
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1377:
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1357:
1354:
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1337:
1334:
1331:
1328:
1323:
1320:
1313:
1310:
1303:
1300:
1293:
1290:
1283:
1280:
1273:
1270:
1263:
1260:
1259:
1257:
1253:
1244:
1241:
1236:
1233:
1228:
1225:
1220:
1219:
1213:
1210:
1205:
1202:
1197:
1194:
1189:
1186:
1181:
1178:
1171:
1168:
1163:
1160:
1155:
1152:
1147:
1144:
1139:
1136:
1131:
1128:
1123:
1122:Galenki RT-70
1120:
1115:
1112:
1105:
1102:
1097:
1094:
1087:
1084:
1083:
1081:
1075:
1072:
1069:
1064:
1060:
1054:
1051:
1048:
1045:
1042:
1038:
1035:
1032:
1028:
1025:
1022:
1018:
1014:
1013:
1011:
1007:
1003:
996:
991:
989:
984:
982:
977:
976:
973:
967:
964:
962:
959:
957:
954:
952:
949:
948:
929:on 2012-02-22
928:
924:
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914:
906:
902:
898:
894:
886:
879:
873:
866:
862:
857:
849:
843:
839:
835:
834:
826:
822:
811:
808:
806:
803:
802:
791:
787:
784:
783:
779:
776:
775:
771:
768:
767:
763:
760:
759:
755:
753:Total Weight
752:
751:
747:
744:
743:
739:
736:
735:
731:
728:
727:
723:
720:
719:
715:
712:
711:
707:
704:
703:
699:
696:
695:
691:
688:
687:
684:
681:
680:
676:
673:
672:
668:
665:
664:
660:
657:
656:
652:
649:
648:
644:
641:
640:
636:
633:
632:
628:
625:
624:
621:
618:
617:
613:
610:
609:
605:
602:
601:
598:
595:
594:
590:
587:
586:
582:
579:
578:
574:
571:
570:
566:
563:
562:
558:
555:
554:
550:
547:
546:
540:
537:
534:
529:
525:
521:
517:
513:
503:
501:
497:
493:
488:
486:
482:
478:
474:
464:
462:
458:
454:
450:
446:
442:
438:
435:(part of the
434:
430:
426:
415:
409:
406:
402:
396:
374:
365:
361:
356:
342:
338:
334:
329:
327:
323:
319:
314:
310:
306:
301:
297:
292:
286:
283:
279:
275:
263:
259:
255:
253:
249:
245:
240:
236:
231:
225:
222:
218:
214:
208:
180:
176:
172:
168:
164:
160:
156:
152:
147:
141:
138:
134:
130:
125:
113:
110:
102:
99:November 2016
91:
88:
84:
81:
77:
74:
70:
67:
63:
60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
2306:Willerscheid
2246:Reckerscheid
2226:Nitterscheid
2121:Hilterscheid
2086:Escher Heide
2071:Eicherscheid
1857:Astronomy by
1818:Arno Penzias
1758:Cyril Hazard
1400:South Africa
1191:(Uzbekistan)
1113:
1031:Radio window
931:. Retrieved
927:the original
922:
913:
896:
892:
885:
872:
867:, 2002-01-04
856:
832:
825:
538:
533:feed antenna
509:
492:Solar System
489:
470:
424:
422:
326:Focal length
220:Organization
157:Effelsberg,
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
2301:Weißenstein
2266:Scheuerheck
2146:Hummerzheim
2116:Hardtbrücke
2106:Gut Hospelt
2018:Borough of
1937:Wow! signal
1828:Martin Ryle
1823:Grote Reber
1753:Frank Drake
1694:(Australia)
1528:Space-based
1518:Netherlands
1390:Netherlands
1360:South Korea
1238:(Australia)
1188:Suffa RT-70
355:/effelsberg
347:.mpifr-bonn
202: /
178:Coordinates
154:Location(s)
2335:Categories
2181:Langscheid
2171:Kolvenbach
2166:Kirspenich
2091:Eschweiler
2061:Effelsberg
2046:Berresheim
1859:EM methods
1079:telescopes
1077:Individual
933:2016-11-30
838:OUP Oxford
817:References
764:1968–1971
461:Green Bank
252:Wavelength
187:50°31′29″N
163:Euskirchen
69:newspapers
2261:Sasserath
2256:Rupperath
2216:Mutscheid
2186:Lanzerath
2156:Iversheim
2151:Hünkhoven
2141:Houverath
2076:Ellesheim
2051:Bliesthal
1843:Paul Wild
1676:Multi-use
1656:(SAORAS,
1430:Australia
1418:(MERLIN,
1410:Australia
1296:Australia
1286:Australia
1215:(Ukraine)
1207:(Ukraine)
1117:(Germany)
740:16°/min.
677:30°/min.
556:Aperture
528:parabolic
494:with its
467:Geography
433:Ahr Hills
268:1968–1971
264:1968–1971
190:6°52′58″E
173:, Germany
2286:Vollmert
2271:Scheuren
2241:Ohlerath
2236:Odesheim
2211:Maulbach
2206:Mahlberg
2176:Kop Nück
2136:Honerath
2101:Gilsdorf
2041:Bergrath
1967:Category
1803:Jan Oort
1702:(Canada)
1686:(Canada)
1639:(Sweden)
1631:(France)
1575:(Canada)
1545:Spektr-R
1388:(LOFAR,
1368:(LLAMA,
1325:(Europe)
1314:(CARMA,
1304:(CHIME,
1294:(ASKAP,
1141:(Mexico)
1125:(Russia)
1009:Concepts
799:See also
756:3,200 t
559:7,854 m
299:Diameter
238:Altitude
2276:Schönau
2221:Neichen
2196:Limbach
2191:Lethert
1977:Commons
1516:(WSRT,
1506:(VLBA,
1466:(PaST,
1408:(MOST,
1396:MeerKAT
1338:(GMRT,
1284:(ATCA,
1274:(ALMA,
1227:HartRAO
1199:(Japan)
1183:(Italy)
1165:(China)
1157:(India)
1088:(FAST,
1041:History
1015:Units (
901:Bibcode
899:: 209.
614:f/3.85
496:planets
487:river.
445:Germany
431:in the
340:Website
266: (
167:Cologne
136:Part of
83:scholar
2281:Soller
2251:Rodert
2231:Nöthen
2161:Kalkar
2131:Holzem
2066:Eichen
2031:Arloff
1711:People
1658:Russia
1648:Russia
1549:Russia
1496:(VLA,
1486:(SMA,
1476:(SKA,
1450:France
1428:(MWA,
1378:(LWA,
1358:(KVN,
1348:(GBI,
1306:Canada
1264:(ATA,
1174:Russia
1106:(CSO,
1049:(VLBI)
1021:jansky
844:
772:319 m
606:f/0.3
591:6.5 m
567:2,352
551:100 m
518:, the
398:
287:
226:
142:
85:
78:
71:
64:
56:
2366:Eifel
1539:Japan
1535:HALCA
1468:China
1440:Italy
1340:India
1332:(EHT)
1276:Chile
1090:China
792:/MAN
790:Krupp
716:28 m
669:480°
653:64 m
583:30 m
439:) in
437:Eifel
427:is a
412:[
261:Built
90:JSTOR
76:books
2291:Wald
2126:Hohn
2081:Esch
1932:SETI
1699:PARL
1683:DRAO
1667:(US)
1623:(US)
1615:(UK)
1607:(UK)
1599:(US)
1591:(US)
1459:(UK)
1246:(NZ)
1149:(UK)
1068:List
1019:and
1017:watt
865:NRAO
842:ISBN
692:10"
516:Bonn
423:The
349:.mpg
62:news
897:100
700:2"
514:in
500:Sun
485:Ahr
475:in
459:in
455:'s
353:/en
351:.de
345:www
45:by
2337::
1508:US
1488:US
1420:UK
1108:US
921:.
895:.
863:,
836:.
443:,
169:,
165:,
161:,
2011:e
2004:t
1997:v
1660:)
1650:)
1551:)
1547:(
1541:)
1537:(
1520:)
1510:)
1500:)
1490:)
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1448:(
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1172:(
1110:)
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1066:(
1043:)
1039:(
1033:)
1029:(
1023:)
994:e
987:t
980:v
936:.
907:.
903::
850:.
416:]
270:)
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
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