Sproul Observatory, Astronomical observatory at Swarthmore College, Pennsylvania, United States.
The observatory contains a 24-inch refracting telescope housed in a white domed structure on the Swarthmore College campus.
William Cameron Sproul, Pennsylvania governor and Swarthmore graduate, funded the observatory construction in 1907 for astronomical research and education.
The facility supported astronomy education at Swarthmore College, enabling students and researchers to conduct celestial observations and studies until 2017.
The observatory operated from 1913 to 2017, when its telescope relocated to Bentonville, Arkansas for public outreach programs.
Under Peter van de Kamp's direction, researchers used photographic plates from the telescope to study stellar movements and planetary systems.
Location: Pennsylvania
GPS coordinates: 39.90310,-75.35530
Latest update: March 5, 2025 20:50
Hedgerow Theatre
2.8 km
Darby Creek
5.6 km
Caleb Pusey House
6.4 km
1724 Chester Courthouse
6 km
Thomas Leiper Estate
1.8 km
Morton Morton House
6.1 km
Scott Arboretum
468 m
Idlewild
3 km
Benjamin West Birthplace
375 m
Morton Homestead
5.1 km
Delaware County National Bank
6.3 km
St. Paul's Church
5.6 km
Thunderbird Lodge
2.8 km
Delaware County Institute of Science
3.6 km
Collen Brook Farm
6.1 km
Wolley Stille
3.3 km
Sleeper's College
5.8 km
Ogden House
991 m
Westlawn
1.9 km
George K. Crozer Mansion
6 km
Congregation Beth Israel
4.4 km
Dr. Samuel D. Risley House
3.4 km
Pusey-Crozier Mill Historic District
6.4 km
Lower Swedish Cabin
6.2 km
Taylor Memorial Arboretum
3.7 km
Old Main and Chemistry Building
4.6 km
John P. Crozer II Mansion
3.9 km
Rose Valley Historic District
2.7 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes