Lord Rosse's great 72-inch (1.828m) diameter reflecting telescope of 1845,called the Leviathan of Parsonstown. Mounted between two brick walls,it could move only in a north-south direction. The Earth's rotation provided movement in an east-west direction. From his paper 'On the Construction of Specula of Six-feet Aperture' in Philosophical Transactions of the Royal Society (London,1849). William Parsons,3rd Earl of Rosse (1800-1867) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / UIG / Universal History Archive |
Bildgröße: | 3381 px × 2590 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |