Cambridge.

The definitive guide to dark skies and celestial observation in Cambridge, MD. Verified using National Park Service and NASA Night Sky Network Clubs data.

Bortle Scale
6
Best Regional Reading
Sky Quality
21.1
SQM Zenith Value
Verified Sites
5
Community Vetted
Dark Sky Parks
2
IDA Certified Nearby

Quick Guide for Cambridge

  • Top Community Pick: Rock Creek Park (~59.3 miles)
  • Best Scientific Reading: Bortle 4.0 at Visitor Center
  • Local Experts: Delmarva Astronomy Society
  • Verified Observations: 5 distinct spots

Stargazing in Cambridge is surprisingly rewarding if you know exactly where to set up your tripod. While enthusiasts often gather at Rock Creek Park for its accessibility, scientific audits conducted by the National Park Service at Visitor Center provide the most accurate reading of the regional sky quality, measuring at a Bortle 4.0. The local landscape of Cambridge offers several pockets of darkness that are perfect for deep-sky observation.

The Best Times for Stargazing in Cambridge

Since Cambridge sits in a transitional light zone, viewing is best during the New Moon or after midnight when some commercial lighting is reduced.

Expert Tips for Cambridge Observers

When visiting Rock Creek Park, remember to check if the gates close at sunset or if a night-use permit is required. Binoculars are a favorite for regulars here for sweeping views of the Moon’s craters and larger constellations. Local enthusiasts often frequent this spot, making it a great place to meet experienced observers. Regardless of your gear, allow 30 minutes for your eyes to fully dark-adapt.

Local Top Spots

Community-vetted locations known for clear horizons and accessibility for telescopes and astrophotography.

Premier Verified Hub Confidence: 100%

Rock Creek Park

59.3 mi
Distance

" There is free parking next to the site. It will be cancelled if we can't see any stars, i.e., clouds, rain., Parking is available next to the site. "

Washington, DC NaN
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Premier Verified Hub Confidence: 100%

Soldiers Delight Environmental Area

70.4 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Owings Mills, MD 21117
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Premier Verified Hub Confidence: 90%

Univ. of MD Observatory

54.9 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

College Park, MD NaN
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Premier Verified Hub Confidence: 87.5%

Observatory Park

72.4 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Gaithersburg, MD 20877
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Active Viewing Spot Confidence: 77.5%

University of Maryland Observatory

57.4 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Adelphi, MD 20783
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Scientific Audit

NPS Sky Measurements

Instrumented readings from the National Park Service Night Sky Program, providing the most accurate SQM and Bortle classifications.

Visitor Center

Harriet Tubman Underground Railroad NHP

20.37 SQM
Bortle Class 4

"Setup camera on the west side of the pond on USFWS Refuge adjoining the park. Many local glare sources visible from the visitor center and administrative offices, as well as the visitor parking lot. We were able to turn off several closer lights on the pavilion and its adjoining grass parking area. A cold night with very clear skies after a cold front moved through. The Milky Way was visible from 25° above the horizon in the north to 20° above horizon in the south. Not too much detail but M31 (Andromeda Galaxy) was visible to the naked eye and overall this night sky provides good opportunities for public observing. The light dome from the greaer Washington D.C. area on over to Baltimore extended about 30° above the horizon. Norfolk Virginia was visible to about 20° above the horizon and Salisbury and Ocean City were easily visible to the east. The lights of Cambridge and Easton illuminated a few remaining clouds to the NNE. SQM zenith brightness reading of 20.59."

Observation Date
11/11/2022
Elevation
2m
Zenith Brightness
20.63

North end (State Park)

Assateague Island NS

21.1 SQM
Bortle Class 6

"North end of island looks north direclty to Ocean City"

Observation Date
5/20/2009
Elevation
2m
Zenith Brightness
21.54

International Dark Sky Parks

Premier locations certified for their exceptional dark sky quality and commitment to light pollution mitigation.

IDA Certified Distance: 105.7 miles

Sky Meadows State Park

Sky Meadows State Park is a 754-hectare site in northern Virginia, U.S., about one hour from the Washington, D.C., metro area. The name ‘Sky Meadows’ comes from…

Category
International Dark Sky Park
Certified
2021
Land Area
7.54 km2
Coordinates
38.9910, -77.9589
IDA Certified Distance: 112.5 miles

Rappahannock County Park

The Rappahannock County Park is a 7.3-acre park located centrally in Rappahannock County off Route 211 near the town of Washington, Virginia, mere miles east of…

Category
International Dark Sky Park
Certified
2019
Land Area
.03 km2
Coordinates
38.7110, -78.1523

Local Astronomy Clubs

Connect with experts and fellow enthusiasts through local astronomical societies and community groups.

NASA Night Sky Club ID
#473

Delmarva Astronomy Society

Milton, DE

NASA Night Sky Club ID
#420

Astronomical Society of Greenbelt

Greenbelt, MD