Cutaway diagram of the 4.2 metre (165-inch) William Herschel Telescope inside its dome at the Roque de los Muchachos Observatory on La Palma,in the Canary Islands. Commissioned in 1987 & operated by the Royal Greenwich Observatory,the instrument is the third largest single mirror telescope in the world. The observatory is located at an altitude of 2400 metres (8000 feet) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Royal Greenwich Observatory |
Taille de l’image : | 4961 px × 3534 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |