🌐EnglishEnglishEspañolFrançaisNederlandsPolskiРусскийفارسی한국어中文日本語EntityQ3333287· pop 14· linked from 671 articlesIERS Reference MeridianAlso known as IRMinternational prime meridian used for GPS and other systemsOn the map36 mapped locationsAvailable in 14 languagesEspañolFrançais中文日本語РусскийCatalanIlokoNederlandsPolskiUkrainianConnectionsprime meridianEntityUnited StatesCountryCategoriesGeographic coordinate listsLists of coordinatesNamed meridiansPrime meridians