![The Leviathan of Parsonstown, Birr Castle. The 6ft telescope was built in 1845 by William Parsons, 3rd Earl of Rosse, and remained the largest telescope in the world for 70 years - The Leviathan of Parsonstown, Birr Castle. The 6ft telescope was built in 1845 by William Parsons, 3rd Earl of Rosse, and remained the largest telescope in the world for 70 years -](https://andreas-und-angelika.de/galleries/andreas/2019-06_Ireland/photos/aka-Ireland-2019-06-16__D5X6176.jpg)
The Leviathan of Parsonstown, Birr Castle. The 6ft telescope was built in 1845 by William Parsons, 3rd Earl of Rosse, and remained the largest telescope in the world for 70 years -
![Leviathan telescope. Coloured historical artwork of the 1.8 metre (m) telescope named the Leviathan of Parsontown. It was completed by William Parsons Stock Photo - Alamy Leviathan telescope. Coloured historical artwork of the 1.8 metre (m) telescope named the Leviathan of Parsontown. It was completed by William Parsons Stock Photo - Alamy](https://c8.alamy.com/comp/2ADM1TY/leviathan-telescope-coloured-historical-artwork-of-the-18-metre-m-telescope-named-the-leviathan-of-parsontown-it-was-completed-by-william-parsons-2ADM1TY.jpg)
Leviathan telescope. Coloured historical artwork of the 1.8 metre (m) telescope named the Leviathan of Parsontown. It was completed by William Parsons Stock Photo - Alamy
![The Leviathan of Parsonstown, the 72 inch telescope built by William Parsons, 3rd Earl of Rosse, in 1845. It was located at Birr Castle, Parsonstown, County Offaly, Ireland and was the largest The Leviathan of Parsonstown, the 72 inch telescope built by William Parsons, 3rd Earl of Rosse, in 1845. It was located at Birr Castle, Parsonstown, County Offaly, Ireland and was the largest](https://c8.alamy.com/comp/2G6HB08/the-leviathan-of-parsonstown-the-72-inch-telescope-built-by-william-parsons-3rd-earl-of-rosse-in-1845-it-was-located-at-birr-castle-parsonstown-county-offaly-ireland-and-was-the-largest-telescope-built-in-the-19th-century-parsonstown-is-now-known-as-birr-the-telescope-can-still-be-seen-at-irelands-historic-science-centre-at-birr-castle-from-the-universe-or-the-infinitely-great-and-the-infinitely-little-published-1882-2G6HB08.jpg)
The Leviathan of Parsonstown, the 72 inch telescope built by William Parsons, 3rd Earl of Rosse, in 1845. It was located at Birr Castle, Parsonstown, County Offaly, Ireland and was the largest
![Photograph by Colonel Harry J Watson showing the Great Rosse Telescope from the southeast. Constructed between 1842 and 1845 by William Parsons, Third... - SuperStock Photograph by Colonel Harry J Watson showing the Great Rosse Telescope from the southeast. Constructed between 1842 and 1845 by William Parsons, Third... - SuperStock](https://www.superstock.com/cdn/1895/Comp/1895-3745.webp)