It was built by an Anglo-Irish nobleman, Willam Parsons, Earl of Rosse, in the midst of the Irish famine. 50 feet long, 6 feet in diameter, the monster instrument was dubbed "The Leviathan".

The Leviathan was balanced so well that, despite it weighing 16 tons, two men could easily point it to any spot in the sky. ... The Leviathan of Parsonstown remained in use until 1890.

The Leviathan of Parsonstown telescope in Ireland was completed in 1845 by the Third Earl of Rosse and was the largest telescope in the world for 70 years. It featured a 72-inch speculum mirror.

Ireland’s "Leviathan of Parsonstown" a 40-ton reflecting telescope built by the Earl of Rosse in 1845, was the world’s largest for seven decades. But wet weather kept it shut down most of the time.

The Leviathan of Parsonstown Posted By Steven Pomeroy On Date February 3, 2021 (via SciShow Space ) In the 1800s, William Parsons built a telescope larger than any in the world: The Leviathan of ...

The Leviathan of Parsonstown The third Earl of Rosse was a keen amateur engineer, mathematician and astronomer. When he inherited the family estate at Birr Castle, 100 miles west of Dublin, he ...

In April, while scanning the constellation Leo with Parsons’ 72-inch speculum-mirror reflector — the Leviathan of Parsonstown — Copeland was the first to spot this compact galaxy group.

The castle is well known as the home of the “Great Telescope,” or “Leviathan of Parsonstown,” which was built in 1845 by the third Earl of Rosse. It remained the largest telescope in the ...

The Leviathan was balanced so well that, despite it weighing 16 tons, two men could easily point it to any spot in the sky. ... The Leviathan of Parsonstown remained in use until 1890.

The Leviathan of Parsonstown The third Earl of Rosse was a keen amateur engineer, mathematician and astronomer. When he inherited the family estate at Birr Castle, 100 miles west of Dublin, he ...