William Parsons, 3rd Earl of Rosse

The Earl of Rosse
27th President of the Royal Society
In office
1848–1854
Preceded bySpencer Compton
Succeeded byJohn Wrottesley
Personal details
Born(1800-06-17)17 June 1800
York, England
Died31 October 1867(1867-10-31) (aged 67)
Monkstown, County Dublin, Ireland
Alma materTrinity College Dublin
Magdalen College, Oxford
OccupationEngineer
Notable workLeviathan of Parsonstown
Spouse
(m. 1836)
Children13, including Lawrence and Charles
Parent(s)Lawrence Parsons, 2nd Earl of Rosse
Alice Lloyd
Awards
Scientific career
FieldsAstronomy
InstitutionsBirr Castle

William Parsons, 3rd Earl of Rosse KP FRS (17 June 1800 – 31 October 1867), was an English engineer and astronomer. He built several giant telescopes.[1][2] 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.[3] From April 1807 until February 1841, he was styled as Baron Oxmantown.

  1. ^ Michael Parsons, 6th Earl of Rosse (Autumn 1968). "William Parsons, third Earl of Rosse" (PDF). Hermathena (107). Trinity College Dublin: 5–13. JSTOR 23040086.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  2. ^ Tebbutt, John (1869). "Williams Parson, Earl of Rosse". Monthly Notices of the Royal Astronomical Society. 29 (4). Royal Astronomical Society: 123–130. Bibcode:1868MNRAS..29....2T. Retrieved 7 June 2017.
  3. ^ "Telescopes: Lord Rosse's Reflectors". Amazing-space.stsci.edu. Retrieved 3 September 2012.