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537:. 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
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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
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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.
494:. 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
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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".
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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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458:. 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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891:, 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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Combined Array for
Research in Millimeter-wave Astronomy
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930:"Home | Max Planck Institut für Radioastronomie"
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Dr
Norbert Junkes video interview on Astrotalkuk.org
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408, 86,000 MHz (73.48, 0.35 cm)
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60:. Unsourced material may be challenged and removed.
521:The Effelsberg radio telescope is operated by the
2372:Buildings and structures in Euskirchen (district)
1427:Multi-Element Radio Linked Interferometer Network
509:. The trail ends at the 39 cm model of the
1313:Canadian Hydrogen Intensity Mapping Experiment
599:Secondary Mirror Diameter (Gregory-Reflector)
2014:
997:
8:
1303:Australian Square Kilometre Array Pathfinder
462:in the UK. In 2000, it was surpassed by the
399:Location of Effelsberg 100-m Radio Telescope
132:
27:Radio telescope in Bad Münstereifel, Germany
1097:500 meter Aperture Spherical Telescope
2382:Buildings and structures completed in 1971
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2007:
1999:
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653:– at 3.5 mm wavelength (86 GHz)
637:– at 21 cm wavelength (1.4 GHz)
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314:
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120:Learn how and when to remove this message
1417:Molonglo Observatory Synthesis Telescope
1254:Warkworth Radio Astronomical Observatory
645:– at 3 cm wavelength (10 GHz)
552:
523:Max Planck Institute for Radio Astronomy
235:Max Planck Institute for Radio Astronomy
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756:Power Output of the 4 Elevation Drives
716:Power Output of the 16 Azimuth Drives
326:7,850 m (84,500 sq ft)
1918:Cosmic microwave background radiation
1655:Pushchino Radio Astronomy Observatory
1377:Large Latin American Millimeter Array
7:
1983:
1631:National Radio Astronomy Observatory
1525:Westerbork Synthesis Radio Telescope
575:Number of Surface Elements (Panels)
313:100 m (328 ft 1 in)
58:adding citations to reliable sources
2362:1971 establishments in West Germany
1623:Mullard Radio Astronomy Observatory
468:Robert C. Byrd Green Bank Telescope
1457:Northern Extended Millimeter Array
977:Bill Keel's "Telescopes I've seen"
69:"Effelsberg 100-m Radio Telescope"
25:
1293:Australia Telescope Compact Array
1115:Caltech Submillimeter Observatory
1058:Very Long Baseline Interferometry
341:30 m (98 ft 5 in)
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1982:
1973:
1972:
780:Height of Track above Sea Level
630:Angular Resolution (Beam Width)
436:Effelsberg 100-m Radio Telescope
410:
389:
382:
133:Effelsberg 100-m Radio Telescope
34:
1347:Giant Metrewave Radio Telescope
1215:UTR-2 decameter radio telescope
724:Radius of Elevation Gear Track
308:
45:needs additional citations for
1447:Northern Cross Radio Telescope
1283:Atacama Large Millimeter Array
554:Technical data of the antenna
1:
823:– at Jodrell Bank Observatory
1897:Gravitational-wave astronomy
1475:Primeval Structure Telescope
591:Focal Length in Prime Focus
513:next to the visitor centre.
1809:Christiaan Alexander Muller
1675:Vermilion River Observatory
1583:Algonquin Radio Observatory
1048:Astronomical interferometer
972:Effelsberg Official Webpage
252:319 m (1,047 ft)
2398:
1149:Large Millimeter Telescope
904:Astronomy and Astrophysics
788:Commencement of Operation
669:Setting Accuracy of Track
583:Shape Accuracy of Surface
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2037:
1968:
1437:Murchison Widefield Array
1357:Green Bank Interferometer
1181:RATAN-600 Radio Telescope
1064:Astronomical radio source
844:A Dictionary of Astronomy
421:
408:
377:
137:
1647:Onsala Space Observatory
1639:Nançay Radio Observatory
1615:Jodrell Bank Observatory
1515:Very Long Baseline Array
1191:Sardinia Radio Telescope
816:Stockert Radio Telescope
416:Related media on Commons
1877:Submillimetre astronomy
1489:Australia, South Africa
1341:Event Horizon Telescope
916:1981A&A...100..209H
685:Maximum Rotation Speed
661:Azimuth Track Diameter
535:Max-Planck-Gesellschaft
1599:Green Bank Observatory
1485:Square Kilometre Array
740:– during observations
488:North Rhine-Westphalia
464:Green Bank Observatory
182:North Rhine-Westphalia
1892:High-energy astronomy
1779:Sebastian von Hoerner
1387:Long Wavelength Array
1333:European VLBI Network
1273:Allen Telescope Array
1173:Qitai Radio Telescope
841:Ridpath, Ian (2012).
622:– in Secondary Focus
151:European VLBI Network
2367:Astronomy in Germany
2067:Buchholzbacher Mühle
1960:Solar radio emission
1749:Jocelyn Bell Burnell
1607:Haystack Observatory
1141:Green Bank Telescope
1125:Effelsberg Telescope
799:Arbeitsgemeinschaft
772:Construction Period
648:1.15' (arc minutes)
492:Rhineland-Palatinate
323:Collecting area
292:Telescope style
54:improve this article
2357:Low-Frequency Array
1933:Pulsar timing array
1739:Edward George Bowen
1729:Elizabeth Alexander
1591:Arecibo Observatory
1495:Submillimeter Array
1397:Low-Frequency Array
1367:Korean VLBI Network
1233:Southern Hemisphere
1144:(West Virginia, US)
748:Maximum Tilt Speed
640:9.4' (arc minutes)
559:Reflector Diameter
555:
206: /
134:
1913:Aperture synthesis
1882:Infrared astronomy
1819:Joseph Lade Pawsey
1789:Kenneth Kellermann
1759:Nan Dieter-Conklin
1467:One-Mile Telescope
1246:Parkes Observatory
759:17.5 kW each
719:10.2 kW each
693:Pointing Accuracy
656:10" (arc seconds)
553:
210:50.5247°N 6.8828°E
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2107:Forsthaus Hülloch
1996:
1995:
1938:Radio propagation
1887:Optical astronomy
1784:Karl Guthe Jansky
1594:(Puerto Rico, US)
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1361:West Virginia, US
1110:(Puerto Rico, US)
1107:Arecibo Telescope
934:Mpifr-bonn.mpg.de
858:978-0-19-960905-5
807:
806:
743:from 8.1° to 89°
700:– Blind Pointing
614:– in Prime Focus
586:< 0.5 mm
533:institute of the
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16:(Redirected from
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2047:Bad Münstereifel
2031:Bad Münstereifel
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2016:
2009:
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1953:HD 164595 signal
1928:Odd radio circle
1906:Related articles
1824:Ruby Payne-Scott
1754:Arthur Covington
1744:Ronald Bracewell
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732:Elevation Range
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460:Lovell Telescope
452:Bad Münstereifel
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2308:
2307:Wasserscheide
2305:
2303:
2300:
2298:
2295:
2293:
2290:
2288:
2285:
2283:
2280:
2278:
2275:
2273:
2270:
2268:
2265:
2263:
2260:
2258:
2255:
2253:
2250:
2248:
2245:
2243:
2240:
2238:
2235:
2233:
2230:
2228:
2225:
2223:
2220:
2218:
2215:
2213:
2210:
2208:
2205:
2203:
2200:
2198:
2195:
2193:
2190:
2188:
2185:
2183:
2180:
2178:
2175:
2173:
2170:
2168:
2165:
2163:
2160:
2158:
2155:
2153:
2150:
2148:
2145:
2143:
2140:
2138:
2135:
2133:
2130:
2128:
2125:
2123:
2120:
2118:
2115:
2113:
2110:
2108:
2105:
2103:
2100:
2098:
2095:
2093:
2090:
2088:
2085:
2083:
2080:
2078:
2075:
2073:
2070:
2068:
2065:
2063:
2060:
2058:
2055:
2053:
2050:
2048:
2045:
2043:
2040:
2039:
2036:
2032:
2024:
2019:
2017:
2012:
2010:
2005:
2004:
2001:
1989:
1981:
1979:
1971:
1970:
1967:
1961:
1958:
1954:
1951:
1949:
1946:
1945:
1944:
1941:
1939:
1936:
1934:
1931:
1929:
1926:
1924:
1921:
1919:
1916:
1914:
1911:
1910:
1908:
1904:
1898:
1895:
1893:
1890:
1888:
1885:
1883:
1880:
1878:
1875:
1874:
1872:
1866:
1860:
1859:Robert Wilson
1857:
1855:
1852:
1850:
1847:
1845:
1844:Govind Swarup
1842:
1840:
1837:
1835:
1832:
1830:
1827:
1825:
1822:
1820:
1817:
1815:
1812:
1810:
1807:
1805:
1802:
1800:
1799:John D. Kraus
1797:
1795:
1794:Frank J. Kerr
1792:
1790:
1787:
1785:
1782:
1780:
1777:
1775:
1774:Antony Hewish
1772:
1770:
1767:
1765:
1762:
1760:
1757:
1755:
1752:
1750:
1747:
1745:
1742:
1740:
1737:
1735:
1732:
1730:
1727:
1726:
1724:
1720:
1711:
1708:
1703:
1700:
1695:
1692:
1691:
1689:
1685:
1676:
1673:
1666:
1663:
1656:
1653:
1648:
1645:
1640:
1637:
1632:
1629:
1624:
1621:
1616:
1613:
1608:
1605:
1600:
1597:
1592:
1589:
1584:
1581:
1580:
1578:
1576:
1575:Observatories
1572:
1557:
1554:
1547:
1544:
1543:
1541:
1537:
1526:
1523:
1516:
1513:
1506:
1503:
1496:
1493:
1486:
1483:
1476:
1473:
1468:
1465:
1458:
1455:
1448:
1445:
1438:
1435:
1428:
1425:
1418:
1415:
1408:
1405:
1398:
1395:
1388:
1385:
1378:
1375:
1368:
1365:
1358:
1355:
1348:
1345:
1342:
1339:
1334:
1331:
1324:
1321:
1314:
1311:
1304:
1301:
1294:
1291:
1284:
1281:
1274:
1271:
1270:
1268:
1264:
1255:
1252:
1247:
1244:
1239:
1236:
1231:
1230:
1224:
1221:
1216:
1213:
1208:
1205:
1200:
1197:
1192:
1189:
1182:
1179:
1174:
1171:
1166:
1163:
1158:
1155:
1150:
1147:
1142:
1139:
1134:
1133:Galenki RT-70
1131:
1126:
1123:
1116:
1113:
1108:
1105:
1098:
1095:
1094:
1092:
1086:
1083:
1080:
1075:
1071:
1065:
1062:
1059:
1056:
1053:
1049:
1046:
1043:
1039:
1036:
1033:
1029:
1025:
1024:
1022:
1018:
1014:
1007:
1002:
1000:
995:
993:
988:
987:
984:
978:
975:
973:
970:
968:
965:
963:
960:
959:
955:
940:on 2012-02-22
939:
935:
931:
925:
922:
917:
913:
909:
905:
897:
894:
890:
884:
881:
877:
873:
868:
865:
860:
854:
850:
846:
845:
837:
834:
827:
822:
819:
817:
814:
813:
809:
802:
798:
795:
794:
790:
787:
786:
782:
779:
778:
774:
771:
770:
766:
764:Total Weight
763:
762:
758:
755:
754:
750:
747:
746:
742:
739:
738:
734:
731:
730:
726:
723:
722:
718:
715:
714:
710:
707:
706:
702:
699:
698:
695:
692:
691:
687:
684:
683:
679:
676:
675:
671:
668:
667:
663:
660:
659:
655:
652:
651:
647:
644:
643:
639:
636:
635:
632:
629:
628:
624:
621:
620:
616:
613:
612:
609:
606:
605:
601:
598:
597:
593:
590:
589:
585:
582:
581:
577:
574:
573:
569:
566:
565:
561:
558:
557:
551:
548:
545:
540:
536:
532:
528:
524:
516:
514:
512:
508:
504:
499:
497:
493:
489:
485:
477:
475:
473:
469:
465:
461:
457:
453:
449:
446:(part of the
445:
441:
437:
426:
420:
417:
413:
407:
385:
376:
372:
367:
353:
349:
345:
340:
338:
334:
330:
325:
321:
317:
312:
303:
297:
294:
290:
286:
274:
270:
266:
264:
260:
256:
251:
247:
242:
236:
233:
229:
225:
219:
191:
187:
183:
179:
175:
171:
167:
163:
158:
152:
149:
145:
141:
136:
124:
121:
113:
110:November 2016
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: –
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
2317:Willerscheid
2257:Reckerscheid
2237:Nitterscheid
2132:Hilterscheid
2097:Escher Heide
2082:Eicherscheid
1868:Astronomy by
1829:Arno Penzias
1769:Cyril Hazard
1411:South Africa
1202:(Uzbekistan)
1124:
1042:Radio window
942:. Retrieved
938:the original
933:
924:
907:
903:
896:
883:
878:, 2002-01-04
867:
843:
836:
549:
544:feed antenna
520:
503:Solar System
500:
481:
435:
433:
337:Focal length
231:Organization
168:Effelsberg,
116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
2312:Weißenstein
2277:Scheuerheck
2157:Hummerzheim
2127:Hardtbrücke
2117:Gut Hospelt
2029:Borough of
1948:Wow! signal
1839:Martin Ryle
1834:Grote Reber
1764:Frank Drake
1705:(Australia)
1539:Space-based
1529:Netherlands
1401:Netherlands
1371:South Korea
1249:(Australia)
1199:Suffa RT-70
366:/effelsberg
358:.mpifr-bonn
213: /
189:Coordinates
165:Location(s)
2346:Categories
2192:Langscheid
2182:Kolvenbach
2177:Kirspenich
2102:Eschweiler
2072:Effelsberg
2057:Berresheim
1870:EM methods
1090:telescopes
1088:Individual
944:2016-11-30
849:OUP Oxford
828:References
775:1968–1971
472:Green Bank
263:Wavelength
198:50°31′29″N
174:Euskirchen
80:newspapers
18:Effelsberg
2272:Sasserath
2267:Rupperath
2227:Mutscheid
2197:Lanzerath
2167:Iversheim
2162:Hünkhoven
2152:Houverath
2087:Ellesheim
2062:Bliesthal
1854:Paul Wild
1687:Multi-use
1667:(SAORAS,
1441:Australia
1429:(MERLIN,
1421:Australia
1307:Australia
1297:Australia
1226:(Ukraine)
1218:(Ukraine)
1128:(Germany)
751:16°/min.
688:30°/min.
567:Aperture
539:parabolic
505:with its
478:Geography
444:Ahr Hills
279:1968–1971
275:1968–1971
201:6°52′58″E
184:, Germany
2297:Vollmert
2282:Scheuren
2252:Ohlerath
2247:Odesheim
2222:Maulbach
2217:Mahlberg
2187:Kop Nück
2147:Honerath
2112:Gilsdorf
2052:Bergrath
1978:Category
1814:Jan Oort
1713:(Canada)
1697:(Canada)
1650:(Sweden)
1642:(France)
1586:(Canada)
1556:Spektr-R
1399:(LOFAR,
1379:(LLAMA,
1336:(Europe)
1325:(CARMA,
1315:(CHIME,
1305:(ASKAP,
1152:(Mexico)
1136:(Russia)
1020:Concepts
810:See also
767:3,200 t
570:7,854 m
310:Diameter
249:Altitude
2287:Schönau
2232:Neichen
2207:Limbach
2202:Lethert
1988:Commons
1527:(WSRT,
1517:(VLBA,
1477:(PaST,
1419:(MOST,
1407:MeerKAT
1349:(GMRT,
1295:(ATCA,
1285:(ALMA,
1238:HartRAO
1210:(Japan)
1194:(Italy)
1176:(China)
1168:(India)
1099:(FAST,
1052:History
1026:Units (
912:Bibcode
910:: 209.
625:f/3.85
507:planets
498:river.
456:Germany
442:in the
351:Website
277: (
178:Cologne
147:Part of
94:scholar
2292:Soller
2262:Rodert
2242:Nöthen
2172:Kalkar
2142:Holzem
2077:Eichen
2042:Arloff
1722:People
1669:Russia
1659:Russia
1560:Russia
1507:(VLA,
1497:(SMA,
1487:(SKA,
1461:France
1439:(MWA,
1389:(LWA,
1369:(KVN,
1359:(GBI,
1317:Canada
1275:(ATA,
1185:Russia
1117:(CSO,
1060:(VLBI)
1032:jansky
855:
783:319 m
617:f/0.3
602:6.5 m
578:2,352
562:100 m
529:, the
409:
298:
237:
153:
96:
89:
82:
75:
67:
2377:Eifel
1550:Japan
1546:HALCA
1479:China
1451:Italy
1351:India
1343:(EHT)
1287:Chile
1101:China
803:/MAN
801:Krupp
727:28 m
680:480°
664:64 m
594:30 m
450:) in
448:Eifel
438:is a
423:[
272:Built
101:JSTOR
87:books
2302:Wald
2137:Hohn
2092:Esch
1943:SETI
1710:PARL
1694:DRAO
1678:(US)
1634:(US)
1626:(UK)
1618:(UK)
1610:(US)
1602:(US)
1470:(UK)
1257:(NZ)
1160:(UK)
1079:List
1030:and
1028:watt
876:NRAO
853:ISBN
703:10"
527:Bonn
434:The
360:.mpg
73:news
908:100
711:2"
525:in
511:Sun
496:Ahr
486:in
470:in
466:'s
364:/en
362:.de
356:www
56:by
2348::
1519:US
1499:US
1431:UK
1119:US
932:.
906:.
874:,
847:.
454:,
180:,
176:,
172:,
2022:e
2015:t
2008:v
1671:)
1661:)
1562:)
1558:(
1552:)
1548:(
1531:)
1521:)
1511:)
1501:)
1491:)
1481:)
1463:)
1459:(
1453:)
1449:(
1443:)
1433:)
1423:)
1413:)
1409:(
1403:)
1393:)
1383:)
1373:)
1363:)
1353:)
1329:)
1319:)
1309:)
1299:)
1289:)
1279:)
1187:)
1183:(
1121:)
1103:)
1081:)
1077:(
1054:)
1050:(
1044:)
1040:(
1034:)
1005:e
998:t
991:v
947:.
918:.
914::
861:.
427:]
281:)
123:)
117:(
112:)
108:(
98:·
91:·
84:·
77:·
50:.
20:)
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