Home›Astrometry›vertical circle🌐EnglishEnglishDeutschFrançaisItalianoSvenskaРусскийالعربية中文日本語EntityQ830118· pop 5· linked from 2 articlesvertical circleSign in to saveoptical instrument used to measure anglesAvailable in 5 languagesDeutsch中文العربيةLuxembourgishvia Wikidata sitelinks · CC0ConnectionsastronomyEntitytelescopeEntitymicroscopeEntityreflecting telescopeEntityspherical geometryEntityoptical instrumentEntityaltazimuth mountEntitymeridian circleEntityequatorial mountEntityWilliam ChauvenetEntitygeodetic astronomyEntityVertical circleEntitycomet seekerEntityLinda Hall LibraryEntityCategoriesAstrometry