page_title: List of largest optical telescopes in the British Isles
hierarchical_section_title: List of largest optical telescopes in the British Isles
caption_attribution_description: English: Herstmonceux trig with Isaac Newton telescope. The telescope has been removed to La Palma in the Canary Islands
context_page_description: List of largest optical telescopes in the British Isles is a list of the largest optical telescopes in the British Isles, including in the United Kingdom and Ireland.
  Some of the most famous telescopes would be Herschel's reflector, which he discovered Georgium Sidus, the Leviathan of Parsontown which at 1.8 meters was for decades the largest aperture telescope in the World, and in the 20th century many older telescopes are popular tourist attractions such as at Royal Observatory in Greenwich, London. There is also number of modest instruments at universities used for various astronomical projects or education.
  The biggest optical telescope was the Isaac Newton Telescope at Herstmonceux, with a 98 inch mirror; it was there from 1965 to 1980; a lot of astronomy moved to off-site telescopes in space or distant mountains, with data transmitted electronically. The void left for public outreach is filled in part by planetariums and various museum pieces.
  The list is not really representative of the largest telescopes of the United Kingdom or Ireland, which by the 20th century were building large telescopes overseas or in the southern hemisphere for better weather or other reasons.
context_section_description: List of largest optical telescopes in the British Isles is a list of the largest optical telescopes in the British Isles, including in the United Kingdom and Ireland.
  Some of the most famous telescopes would be Herschel's reflector, which he discovered Georgium Sidus, the Leviathan of Parsontown which at 1.8 meters (72  inches) was for decades the largest aperture telescope in the World, and in the 20th century many older telescopes are popular tourist attractions such as at Royal Observatory in Greenwich, London. There is also number of modest instruments at universities used for various astronomical projects or education.
  The biggest optical telescope was the Isaac Newton Telescope at Herstmonceux, with a 98 inch mirror (~249 cm); it was there from 1965 to 1980; a lot of astronomy moved to off-site telescopes in space or distant mountains, with data transmitted electronically. The void left for public outreach is filled in part by planetariums and various museum pieces.
  The list is not really representative of the largest telescopes of the United Kingdom or Ireland, which by the 20th century were building large telescopes overseas or in the southern hemisphere for better weather or other reasons.
caption: The old INT dome
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