🌐EnglishEnglishFrançaisItalianoPolskiPortuguêsالعربية中文EntityQ3694453· pop 6· linked from 10 articlesK correctionFormula for measuring astronomical objectsAvailable in 6 languagesFrançaisPortuguêsItalianoالعربيةPolskivia Wikidata sitelinks · CC0ConnectionsastronomyEntitygalaxyEntityCategoriesAstrophysicsDoppler effects