Whirlpool Galaxy. Illustration of the Whirlpool Galaxy (M51,NGC 5194) made by William Parsons,third Earl of Rosse (1800-1867). Rosse,an Irish astronomer and telescope builder,made this illustration by using a giant reflecting telescope which he built. Completed in 1845,it became known as the "Leviathan of Corkstown". The telescope was 15m long and had a primary mirror with a diameter of 1.8m. With this instrument he was the first to recognise the spiral shape of some fifteen 'nebulae',including M51. In 1850 Rosse published his work on nebulae in a book entitled "Observations on the Nebulae" | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Hencoup & Marten |
Taille de l’image : | 5221 px × 3543 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |