🌐EnglishEnglishEspañolItalianoPortuguêsРусский中文日本語EntityQ7581353· pop 5· linked from 26 articlesSproul Observatoryobservatory in Pennsylvania, United States (1913–2017)Wikidata factsImageSwarthmore College Observatory.jpgSources (2)wikidata.orgru.wikipedia.orgvia Wikidata · CC0On the map2 mapped locationsAvailable in 5 languagesEspañolРусскийPortuguêsItalianovia Wikidata sitelinks · CC0Connectionsplanetary systemEntitySwarthmoreEntityCategories2017 disestablishments in PennsylvaniaAstronomical observatories in PennsylvaniaPlanetary systemsSwarthmore College