🌐EnglishEnglishDeutschFrançaisItalianoNederlandsРусскийالعربيةفارسی한국어中文日本語EntityQ2665569· pop 17· linked from 137 articlesextremely large telescopeAlso known as ELTastronomical observatory featuring an optical telescope with an aperture of more than 20 m diameterWikidata factsImageOverWhelmingly Large Telescope.jpgSources (1)wikidata.orgvia Wikidata · CC0Available in 16 languagesFrançaisDeutsch中文日本語РусскийItalianoالعربيةBulgarianGeorgianNederlandsConnectionsW. M. Keck ObservatoryEntityExtremely Large TelescopeEntityCategoriesReflecting telescopes