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548:. 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.
505:. 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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458:. Inaugurated in 1972, for 29 years the Effelsberg Radio Telescope was the largest fully steerable radio telescope on Earth, surpassing the
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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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The telescope is located about 1.3 km northeast of
Effelsberg, a southeastern part of the town of
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902:, 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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941:"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.
532:The Effelsberg radio telescope is operated by the
2383:Buildings and structures in Euskirchen (district)
1438:Multi-Element Radio Linked Interferometer Network
520:. The trail ends at the 39 cm model of the
1324:Canadian Hydrogen Intensity Mapping Experiment
610:Secondary Mirror Diameter (Gregory-Reflector)
2025:
1008:
8:
1314: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
1108:500 meter Aperture Spherical Telescope
2393:Buildings and structures completed in 1971
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2018:
2010:
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664:– at 3.5 mm wavelength (86 GHz)
648:– at 21 cm wavelength (1.4 GHz)
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120:Learn how and when to remove this message
1428:Molonglo Observatory Synthesis Telescope
1265:Warkworth Radio Astronomical Observatory
656:– at 3 cm wavelength (10 GHz)
563:
534:Max Planck Institute for Radio Astronomy
235:Max Planck Institute for Radio Astronomy
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767:Power Output of the 4 Elevation Drives
727:Power Output of the 16 Azimuth Drives
326:7,850 m (84,500 sq ft)
1929:Cosmic microwave background radiation
1666:Pushchino Radio Astronomy Observatory
1388:Large Latin American Millimeter Array
7:
1994:
1642:National Radio Astronomy Observatory
1536:Westerbork Synthesis Radio Telescope
586:Number of Surface Elements (Panels)
313:100 m (328 ft 1 in)
58:adding citations to reliable sources
2373:1971 establishments in West Germany
1634:Mullard Radio Astronomy Observatory
468:Robert C. Byrd Green Bank Telescope
1468:Northern Extended Millimeter Array
988:Bill Keel's "Telescopes I've seen"
69:"Effelsberg 100-m Radio Telescope"
25:
1304:Australia Telescope Compact Array
1126:Caltech Submillimeter Observatory
1069:Very Long Baseline Interferometry
341:30 m (98 ft 5 in)
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1993:
1984:
1983:
791:Height of Track above Sea Level
641:Angular Resolution (Beam Width)
436:Effelsberg 100-m Radio Telescope
410:
389:
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133:Effelsberg 100-m Radio Telescope
34:
1358:Giant Metrewave Radio Telescope
1226:UTR-2 decameter radio telescope
735:Radius of Elevation Gear Track
308:
45:needs additional citations for
1458:Northern Cross Radio Telescope
1294:Atacama Large Millimeter Array
565:Technical data of the antenna
1:
834:– at Jodrell Bank Observatory
1908:Gravitational-wave astronomy
1486:Primeval Structure Telescope
602:Focal Length in Prime Focus
524:next to the visitor centre.
1820:Christiaan Alexander Muller
1686:Vermilion River Observatory
1594:Algonquin Radio Observatory
1059:Astronomical interferometer
983:Effelsberg Official Webpage
252:319 m (1,047 ft)
2409:
1160:Large Millimeter Telescope
915:Astronomy and Astrophysics
799:Commencement of Operation
680:Setting Accuracy of Track
594:Shape Accuracy of Surface
18:Effelsberg Radio Telescope
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1979:
1448:Murchison Widefield Array
1368:Green Bank Interferometer
1192:RATAN-600 Radio Telescope
1075:Astronomical radio source
855:A Dictionary of Astronomy
421:
408:
377:
137:
1658:Onsala Space Observatory
1650:Nançay Radio Observatory
1626:Jodrell Bank Observatory
1526:Very Long Baseline Array
1202:Sardinia Radio Telescope
827:Stockert Radio Telescope
416:Related media on Commons
1888:Submillimetre astronomy
1500:Australia, South Africa
1352:Event Horizon Telescope
927:1981A&A...100..209H
696:Maximum Rotation Speed
672:Azimuth Track Diameter
546:Max-Planck-Gesellschaft
1610:Green Bank Observatory
1496:Square Kilometre Array
751:– during observations
499:North Rhine-Westphalia
485:
464:Green Bank Observatory
182:North Rhine-Westphalia
1903:High-energy astronomy
1790:Sebastian von Hoerner
1398:Long Wavelength Array
1344:European VLBI Network
1284:Allen Telescope Array
1184:Qitai Radio Telescope
852:Ridpath, Ian (2012).
633:– in Secondary Focus
480:
151:European VLBI Network
2378:Astronomy in Germany
2078:Buchholzbacher Mühle
1971:Solar radio emission
1760:Jocelyn Bell Burnell
1618:Haystack Observatory
1152:Green Bank Telescope
1136:Effelsberg Telescope
810:Arbeitsgemeinschaft
783:Construction Period
659:1.15' (arc minutes)
503:Rhineland-Palatinate
323:Collecting area
292:Telescope style
54:improve this article
2368:Low-Frequency Array
1944:Pulsar timing array
1750:Edward George Bowen
1740:Elizabeth Alexander
1602:Arecibo Observatory
1506:Submillimeter Array
1408:Low-Frequency Array
1378:Korean VLBI Network
1244:Southern Hemisphere
1155:(West Virginia, US)
759:Maximum Tilt Speed
651:9.4' (arc minutes)
570:Reflector Diameter
566:
206: /
134:
1924:Aperture synthesis
1893:Infrared astronomy
1830:Joseph Lade Pawsey
1800:Kenneth Kellermann
1770:Nan Dieter-Conklin
1478:One-Mile Telescope
1257:Parkes Observatory
770:17.5 kW each
730:10.2 kW each
704:Pointing Accuracy
667:10" (arc seconds)
564:
486:
210:50.5247°N 6.8828°E
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2118:Forsthaus Hülloch
2007:
2006:
1949:Radio propagation
1898:Optical astronomy
1795:Karl Guthe Jansky
1605:(Puerto Rico, US)
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1372:West Virginia, US
1121:(Puerto Rico, US)
1118:Arecibo Telescope
945:Mpifr-bonn.mpg.de
869:978-0-19-960905-5
818:
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754:from 8.1° to 89°
711:– Blind Pointing
625:– in Prime Focus
597:< 0.5 mm
544:institute of the
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16:(Redirected from
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2058:Bad Münstereifel
2042:Bad Münstereifel
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1964:HD 164595 signal
1939:Odd radio circle
1917:Related articles
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1765:Arthur Covington
1755:Ronald Bracewell
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743:Elevation Range
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460:Lovell Telescope
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425:edit on Wikidata
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2360:
2358:
2344:
2334:
2331:
2329:
2326:
2324:
2321:
2319:
2318:Wasserscheide
2316:
2314:
2311:
2309:
2306:
2304:
2301:
2299:
2296:
2294:
2291:
2289:
2286:
2284:
2281:
2279:
2276:
2274:
2271:
2269:
2266:
2264:
2261:
2259:
2256:
2254:
2251:
2249:
2246:
2244:
2241:
2239:
2236:
2234:
2231:
2229:
2226:
2224:
2221:
2219:
2216:
2214:
2211:
2209:
2206:
2204:
2201:
2199:
2196:
2194:
2191:
2189:
2186:
2184:
2181:
2179:
2176:
2174:
2171:
2169:
2166:
2164:
2161:
2159:
2156:
2154:
2151:
2149:
2146:
2144:
2141:
2139:
2136:
2134:
2131:
2129:
2126:
2124:
2121:
2119:
2116:
2114:
2111:
2109:
2106:
2104:
2101:
2099:
2096:
2094:
2091:
2089:
2086:
2084:
2081:
2079:
2076:
2074:
2071:
2069:
2066:
2064:
2061:
2059:
2056:
2054:
2051:
2050:
2047:
2043:
2035:
2030:
2028:
2023:
2021:
2016:
2015:
2012:
2000:
1992:
1990:
1982:
1981:
1978:
1972:
1969:
1965:
1962:
1960:
1957:
1956:
1955:
1952:
1950:
1947:
1945:
1942:
1940:
1937:
1935:
1932:
1930:
1927:
1925:
1922:
1921:
1919:
1915:
1909:
1906:
1904:
1901:
1899:
1896:
1894:
1891:
1889:
1886:
1885:
1883:
1877:
1871:
1870:Robert Wilson
1868:
1866:
1863:
1861:
1858:
1856:
1855:Govind Swarup
1853:
1851:
1848:
1846:
1843:
1841:
1838:
1836:
1833:
1831:
1828:
1826:
1823:
1821:
1818:
1816:
1813:
1811:
1810:John D. Kraus
1808:
1806:
1805:Frank J. Kerr
1803:
1801:
1798:
1796:
1793:
1791:
1788:
1786:
1785:Antony Hewish
1783:
1781:
1778:
1776:
1773:
1771:
1768:
1766:
1763:
1761:
1758:
1756:
1753:
1751:
1748:
1746:
1743:
1741:
1738:
1737:
1735:
1731:
1722:
1719:
1714:
1711:
1706:
1703:
1702:
1700:
1696:
1687:
1684:
1677:
1674:
1667:
1664:
1659:
1656:
1651:
1648:
1643:
1640:
1635:
1632:
1627:
1624:
1619:
1616:
1611:
1608:
1603:
1600:
1595:
1592:
1591:
1589:
1587:
1586:Observatories
1583:
1568:
1565:
1558:
1555:
1554:
1552:
1548:
1537:
1534:
1527:
1524:
1517:
1514:
1507:
1504:
1497:
1494:
1487:
1484:
1479:
1476:
1469:
1466:
1459:
1456:
1449:
1446:
1439:
1436:
1429:
1426:
1419:
1416:
1409:
1406:
1399:
1396:
1389:
1386:
1379:
1376:
1369:
1366:
1359:
1356:
1353:
1350:
1345:
1342:
1335:
1332:
1325:
1322:
1315:
1312:
1305:
1302:
1295:
1292:
1285:
1282:
1281:
1279:
1275:
1266:
1263:
1258:
1255:
1250:
1247:
1242:
1241:
1235:
1232:
1227:
1224:
1219:
1216:
1211:
1208:
1203:
1200:
1193:
1190:
1185:
1182:
1177:
1174:
1169:
1166:
1161:
1158:
1153:
1150:
1145:
1144:Galenki RT-70
1142:
1137:
1134:
1127:
1124:
1119:
1116:
1109:
1106:
1105:
1103:
1097:
1094:
1091:
1086:
1082:
1076:
1073:
1070:
1067:
1064:
1060:
1057:
1054:
1050:
1047:
1044:
1040:
1036:
1035:
1033:
1029:
1025:
1018:
1013:
1011:
1006:
1004:
999:
998:
995:
989:
986:
984:
981:
979:
976:
974:
971:
970:
966:
951:on 2012-02-22
950:
946:
942:
936:
933:
928:
924:
920:
916:
908:
905:
901:
895:
892:
888:
884:
879:
876:
871:
865:
861:
857:
856:
848:
845:
838:
833:
830:
828:
825:
824:
820:
813:
809:
806:
805:
801:
798:
797:
793:
790:
789:
785:
782:
781:
777:
775:Total Weight
774:
773:
769:
766:
765:
761:
758:
757:
753:
750:
749:
745:
742:
741:
737:
734:
733:
729:
726:
725:
721:
718:
717:
713:
710:
709:
706:
703:
702:
698:
695:
694:
690:
687:
686:
682:
679:
678:
674:
671:
670:
666:
663:
662:
658:
655:
654:
650:
647:
646:
643:
640:
639:
635:
632:
631:
627:
624:
623:
620:
617:
616:
612:
609:
608:
604:
601:
600:
596:
593:
592:
588:
585:
584:
580:
577:
576:
572:
569:
568:
562:
559:
556:
551:
547:
543:
539:
535:
527:
525:
523:
519:
515:
510:
508:
504:
500:
496:
488:
484:
479:
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:
2328:Willerscheid
2268:Reckerscheid
2248:Nitterscheid
2143:Hilterscheid
2108:Escher Heide
2093:Eicherscheid
1879:Astronomy by
1840:Arno Penzias
1780:Cyril Hazard
1422:South Africa
1213:(Uzbekistan)
1135:
1053:Radio window
953:. Retrieved
949:the original
944:
935:
918:
914:
907:
894:
889:, 2002-01-04
878:
854:
847:
560:
555:feed antenna
531:
514:Solar System
511:
492:
481:View of the
435:
433:
337:Focal length
231:Organization
168:Effelsberg,
116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
2323:Weißenstein
2288:Scheuerheck
2168:Hummerzheim
2138:Hardtbrücke
2128:Gut Hospelt
2040:Borough of
1959:Wow! signal
1850:Martin Ryle
1845:Grote Reber
1775:Frank Drake
1716:(Australia)
1550:Space-based
1540:Netherlands
1412:Netherlands
1382:South Korea
1260:(Australia)
1210:Suffa RT-70
366:/effelsberg
358:.mpifr-bonn
213: /
189:Coordinates
165:Location(s)
2357:Categories
2203:Langscheid
2193:Kolvenbach
2188:Kirspenich
2113:Eschweiler
2083:Effelsberg
2068:Berresheim
1881:EM methods
1101:telescopes
1099:Individual
955:2016-11-30
860:OUP Oxford
839:References
786:1968–1971
472:Green Bank
263:Wavelength
198:50°31′29″N
174:Euskirchen
80:newspapers
2283:Sasserath
2278:Rupperath
2238:Mutscheid
2208:Lanzerath
2178:Iversheim
2173:Hünkhoven
2163:Houverath
2098:Ellesheim
2073:Bliesthal
1865:Paul Wild
1698:Multi-use
1678:(SAORAS,
1452:Australia
1440:(MERLIN,
1432:Australia
1318:Australia
1308:Australia
1237:(Ukraine)
1229:(Ukraine)
1139:(Germany)
762:16°/min.
699:30°/min.
578:Aperture
550:parabolic
516:with its
489:Geography
444:Ahr Hills
279:1968–1971
275:1968–1971
201:6°52′58″E
184:, Germany
2308:Vollmert
2293:Scheuren
2263:Ohlerath
2258:Odesheim
2233:Maulbach
2228:Mahlberg
2198:Kop Nück
2158:Honerath
2123:Gilsdorf
2063:Bergrath
1989:Category
1825:Jan Oort
1724:(Canada)
1708:(Canada)
1661:(Sweden)
1653:(France)
1597:(Canada)
1567:Spektr-R
1410:(LOFAR,
1390:(LLAMA,
1347:(Europe)
1336:(CARMA,
1326:(CHIME,
1316:(ASKAP,
1163:(Mexico)
1147:(Russia)
1031:Concepts
821:See also
778:3,200 t
581:7,854 m
310:Diameter
249:Altitude
2298:Schönau
2243:Neichen
2218:Limbach
2213:Lethert
1999:Commons
1538:(WSRT,
1528:(VLBA,
1488:(PaST,
1430:(MOST,
1418:MeerKAT
1360:(GMRT,
1306:(ATCA,
1296:(ALMA,
1249:HartRAO
1221:(Japan)
1205:(Italy)
1187:(China)
1179:(India)
1110:(FAST,
1063:History
1037:Units (
923:Bibcode
921:: 209.
636:f/3.85
518:planets
509:river.
456:Germany
442:in the
351:Website
277: (
178:Cologne
147:Part of
94:scholar
2303:Soller
2273:Rodert
2253:Nöthen
2183:Kalkar
2153:Holzem
2088:Eichen
2053:Arloff
1733:People
1680:Russia
1670:Russia
1571:Russia
1518:(VLA,
1508:(SMA,
1498:(SKA,
1472:France
1450:(MWA,
1400:(LWA,
1380:(KVN,
1370:(GBI,
1328:Canada
1286:(ATA,
1196:Russia
1128:(CSO,
1071:(VLBI)
1043:jansky
866:
794:319 m
628:f/0.3
613:6.5 m
589:2,352
573:100 m
540:, the
409:
298:
237:
153:
96:
89:
82:
75:
67:
2388:Eifel
1561:Japan
1557:HALCA
1490:China
1462:Italy
1362:India
1354:(EHT)
1298:Chile
1112:China
814:/MAN
812:Krupp
738:28 m
691:480°
675:64 m
605:30 m
450:) in
448:Eifel
438:is a
423:[
272:Built
101:JSTOR
87:books
2313:Wald
2148:Hohn
2103:Esch
1954:SETI
1721:PARL
1705:DRAO
1689:(US)
1645:(US)
1637:(UK)
1629:(UK)
1621:(US)
1613:(US)
1481:(UK)
1268:(NZ)
1171:(UK)
1090:List
1041:and
1039:watt
887:NRAO
864:ISBN
714:10"
538:Bonn
434:The
360:.mpg
73:news
919:100
722:2"
536:in
522:Sun
507:Ahr
497:in
470:in
466:'s
364:/en
362:.de
356:www
56:by
2359::
1530:US
1510:US
1442:UK
1130:US
943:.
917:.
885:,
858:.
454:,
180:,
176:,
172:,
2033:e
2026:t
2019:v
1682:)
1672:)
1573:)
1569:(
1563:)
1559:(
1542:)
1532:)
1522:)
1512:)
1502:)
1492:)
1474:)
1470:(
1464:)
1460:(
1454:)
1444:)
1434:)
1424:)
1420:(
1414:)
1404:)
1394:)
1384:)
1374:)
1364:)
1340:)
1330:)
1320:)
1310:)
1300:)
1290:)
1198:)
1194:(
1132:)
1114:)
1092:)
1088:(
1065:)
1061:(
1055:)
1051:(
1045:)
1016:e
1009:t
1002:v
958:.
929:.
925::
872:.
427:]
281:)
123:)
117:(
112:)
108:(
98:·
91:·
84:·
77:·
50:.
20:)
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