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William Parsons' 'Leviathan' telescope.

William Parsons' 'Leviathan' telescope.

R102/0064

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Engraving of the 'Leviathan of Corkstown', completed by William Parsons, 3rd Earl of Rosse (1800-1867) on his home estate in Ireland in 1845. At the time it was the world's largest telescope, having taken 12 years to build at a cost of #12,000. It had a 183 centimetre (72- inch) diameter mirror, weighed 4060 kg and had a tube over 15 m long. It was supported by a complex system of platforms, pulleys and chains. It was protected from high winds by two masonry piers which restricted the viewing. With it Rosse identified a spiral galaxy's true nature and went on to find 15 of them. Poor weather hampered further observations. It was dismantled in 1908.

Release details

Model release not required. Property release not required.

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