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| Part of | European VLBI Network  |
|---|---|
| Location(s) | Effelsberg, Bad Münstereifel, Euskirchen, Cologne, North Rhine-Westphalia, Germany |
| Coordinates | 50°31′29″N 6°52′58″E / 50.5247°N 6.8828°E |
| Organization | Max Planck Institute for Radio Astronomy |
| Altitude | 319 m (1,047 ft) |
| Wavelength | 408, 86,000 MHz (73.48, 0.35 cm) |
| Built | 1968–1971 |
| Telescope style | radio telescope |
| Diameter | 100 m (328 ft 1 in) |
| Collecting area | 7,850 m2 (84,500 sq ft) |
| Focal length | 30 m (98 ft 5 in) |
| Website | www |
  Location of Effelsberg 100-m Radio Telescope | |
 Related media on Commons | |
The Effelsberg 100-m Radio Telescope is a radio telescope in the Ahr Hills (part of the Eifel) in Bad Münstereifel, Germany. Inaugurated in 1972, for 29 years the Effelsberg Radio Telescope was the largest fully steerable radio telescope on Earth, surpassing the Lovell Telescope in the UK.[1] In 2000, it was surpassed by the Green Bank Observatory's Robert C. Byrd Green Bank Telescope in Green Bank, US, which has a slightly larger elliptical 100 by 110-metre aperture.[2]
- ^ Ridpath, Ian (2012). A Dictionary of Astronomy. OUP Oxford. p. 139. ISBN 978-0-19-960905-5.
- ^ Newly Commissioned Green Bank Telescope Bags New Pulsars, NRAO, 2002-01-04