Home›Browse›Category:20th-century American astronomers🌐EnglishEnglishEspañolFrançaisPolskiPortuguêsSvenskaTiếng ViệtTürkçeالعربيةفارسی日本語EntityQ31939509· pop 15Category:20th-century American astronomersWikimedia categoryWikidata factsShow 1 more factCommons category20th-century astronomers from the United Statesvia Wikidata · CC0Available in 14 languagesEspañolFrançais日本語PortuguêsالعربيةBanglaEgyptian Arabic