William Parsons, 3rd Earl of Rosse (1800–1867)

Born 1800 CE, died 1867 CE.

William Parsons, 3rd Earl of Rosse (17 June 1800 – 31 October 1867), was an Irish engineer and astronomer. He built several giant telescopes. His 72-inch telescope, built in 1845 and colloquially known as the "Leviathan of Parsonstown", was the world's largest telescope, in terms of aperture size, until the early 20th century. From April 1807 until February 1841, he was styled as Baron Oxmantown.

Text from the Wikipedia article William_Parsons,_3rd_Earl_of_Rosse, licensed CC BY-SA 4.0.

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William Parsons, 3rd Earl of Rosse (1800–1867)

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