Bradstreet Observatory.

Research observatory · St. Davids, Pennsylvania

Bradstreet Observatory

Bradstreet Observatory is a research observatory in St. Davids, Pennsylvania.

Bradstreet Observatory in brief

Open to the public
No regular public access
Bortle class
Not yet rated

Official site

Can you visit Bradstreet Observatory? No regular public access

Eastern University teaching observatory; no regular public schedule found.

For telescope views near Bradstreet Observatory, see the observatories open to the public and astronomy clubs nearby; clubs hold free public star parties.

Bradstreet Observatory
Bradstreet Observatory

Telescopes at Bradstreet Observatory

16-inch SCT.

How dark the sky is at Bradstreet Observatory

Bradstreet Observatory has no Bortle rating in the list yet. The scale below shows what each class looks like.

1 mag 8.0 21.99+ 2 mag 7.5 21.89+ 3 mag 7.0 21.69+ 4 mag 6.5 20.49+ 5 mag 6.0 19.50+ 6 mag 5.5 18.94+ 7 mag 5.0 18.38+ 8 mag 4.5 18.00+ 9 mag 4.0
The Bortle scale. Each panel shows the class number, the faintest star the naked eye reaches at the zenith, and the darkest-edge sky brightness reading of that class in mag/arcsec².

Sky brightness and class come from the World Atlas of Artificial Night Sky Brightness (Falchi et al. 2016, CC BY-NC 4.0), with natural skyglow added, at the coordinates below. Research telescopes are often sited on mountains above the haze, so the real sky can be darker than the map suggests.

Bradstreet Observatory among the observatories of Pennsylvania

Dark sky place Research or private observatory Observatory open to the public Star party

Green dots are observatories open to the public, blue dots research or private sites, squares dark sky places; select one for its page. See Pennsylvania observatories for the full list.

The coordinates on this page point to Bradstreet Observatory, Eastern University: 40.050°N, 75.369°W.

Map data © OpenStreetMap contributors. Open the larger map · Directions. Mountain observatory roads are often gated after dark; go only on a scheduled public night.

Dark sky places, observatories and clubs near Bradstreet Observatory

Nearest dark sky places

PlaceWhereBortleDistance
Brandywine Creek State ParkDelaware631 km (20 mi)
French Creek State ParkPennsylvania440 km (25 mi)
Blackbird State ForestDelaware483 km (51 mi)
Belleplain State ForestNew Jersey4100 km (62 mi)
Delaware Water Gap National Recreation AreaNew Jersey4119 km (74 mi)
Killens Pond State ParkDelaware4120 km (74 mi)

Other observatories open to the public within 150 km

  • Villanova ObservatoryVillanova, Pennsylvania, 2 km (1 mi). Open to the public Mon-Thu 7-9 pm per the Villanova Astronomical Society page; other times by appointment
  • Univ. of Pennsylvania ObservatoryPhiladelphia, Pennsylvania, 17 km (11 mi). Teaching observatory on the DRL roof; occasional public observing nights and group visits by arrangement
  • Holt and Miller Observatory (Franklin Institute)Philadelphia, Pennsylvania, 20 km (12 mi). Guided solar viewing through the 10-inch Zeiss refractor Sat-Sun 12-3 with museum admission; occasional ticketed Night Skies evenings
  • Widener University ObservatoryChester, Pennsylvania, 21 km (13 mi). Public viewing sessions through the year
  • Mt. Cuba Astronomical ObservatoryWilmington, Delaware, 35 km (22 mi). Monday 8 pm Public Nights (lecture plus viewing, max 28, $10 adults) and select Friday Family Nights; reservations required
  • Peyton ObservatoryPrinceton, New Jersey, 71 km (44 mi). Free open houses usually 2nd or 3rd Tuesday monthly at 8:30 pm (Thursday backup), no registration

Astronomy clubs within 150 km

Star parties near Bradstreet Observatory

Star partyNearDistanceUsual timing
Cherry Springs Star PartyCoudersport, Pennsylvania273 km (170 mi)June, near new moon
Black Forest Star PartyCoudersport, Pennsylvania273 km (170 mi)September
Shenandoah Night Sky FestivalLuray, Virginia314 km (195 mi)Late summer
Almost Heaven Star PartyRiverton, West Virginia388 km (241 mi)New-moon weekend in August

Planning a trip? Astrotourism in Pennsylvania puts the dark sky places, observatories, clubs, star parties, planetariums and science centers of the state on one map, with the best night out worked out.

Bradstreet Observatory record

Every value in the observatories dataset for Bradstreet Observatory
ID54
NameBradstreet Observatory
Address1300 Eagle Rd, Eastern Univ.
CitySt. Davids
StatePA
Zip19087
CountryUSA
Webhttps://eastern-astronomy.squarespace.com/observe
Publicn
Telescope16-inch SCT
Lat40.05028
Lon-75.36889
LatLonSpotBradstreet Observatory, Eastern University
StatusActive
PublicNoteEastern University teaching observatory; no regular public schedule found
Sourceshttps://en.wikipedia.org/wiki/Bradstreet_Observatory; https://eastern-astronomy.squarespace.com/observe

From the site's observatories dataset (observatories_q426). Distances are computed from the coordinates.