A 72-inch reflecting telescope belonging to William Parsons, Third Earl of Rosse, at Birr Castle, Parsonstown, Ireland. Lord Rosse (1800-1867) was a British astronomer who had several telescopes built. This one, dubbed "Leviathan," was completed in 1845 a

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A 72-inch reflecting telescope belonging to William Parsons, Third Earl of Rosse, at Birr Castle, Parsonstown, Ireland. Lord Rosse (1800-1867) was a British astronomer who had several telescopes built. This one, dubbed "Leviathan," was completed in 1845 and was the world's largest telescope until the early 20th century.

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Size: 4307px × 2703px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No

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