Home›Browse›Sproul Observatory🌐EnglishEnglishEspañolItalianoPortuguêsРусский中文日本語EntityQ7581353· pop 5· linked from 26 articlesSproul ObservatorySign in to saveobservatory in Pennsylvania, United States (1913–2017)On the map2 mapped locationsAvailable in 5 languagesEspañolРусскийPortuguêsItalianovia Wikidata sitelinks · CC0