Lord Rosse's Birr telescopes. These are the 3-foot telescope (right) and the 6-foot telescope (the Leviathan of Birr,left),at Birr Castle,Parsonstown,Ireland. These telescopes were constructed in 1839 and 1845 respectively by the Irish astronomer William Parsons (1800-1867),the 3rd Earl of Rosse. Pioneering research carried out with these telescopes include the meaasurements with the 3-foot telescope of the temperature of the Moon (1868),and observations with the 6-foot telescope of the spiral structure of the M51 galaxy (1845). The 3-foot telescope is being operated by the man in the basket. The 6-foot telescope is accessed by ladders and reinforced by walls | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Astronomical Society |
Bildgröße: | 4736 px × 3694 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |