Commerce City.
The definitive guide to dark skies and celestial observation in Commerce City, CO. Verified using National Park Service and NASA Night Sky Network Clubs data.
Quick Guide for Commerce City
- Top Community Pick: Horsetooth Mtn Open Space (~51.5 miles)
- Best Scientific Reading: Bortle 6.0 at Coyote Ridge
- Local Experts: Brighton Astronomy Group
- Verified Observations: 5 distinct spots
Stargazing in Commerce City is surprisingly rewarding if you know exactly where to set up your tripod. While enthusiasts often gather at Horsetooth Mtn Open Space for its accessibility, scientific audits conducted by the National Park Service at Coyote Ridge provide the most accurate reading of the regional sky quality, measuring at a Bortle 6.0. The transition between the urban infrastructure of Commerce City and the more rural stretches of CO creates several ‘dark sky’ corridors.
The Best Times for Stargazing in Commerce City
Since Commerce City 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 Commerce City Observers
Before heading out to Horsetooth Mtn Open Space, we recommend arriving during civil twilight to scout the terrain safely. Binoculars are a favorite for regulars at this spot 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.
Colorado Guide
Local Top Spots
Community-vetted locations known for clear horizons and accessibility for telescopes and astrophotography.
Horsetooth Mtn Open Space
" 'Dress for temperatures ~20F colder than forecast low for the night. If you need a flashlight, please cover it with red cellophane.' "
Chamberlin Observatory
" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "
Lvld Prairie Ridge
" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "
Fossil Creek Reservoir
" 'Dress for temperatures ~20F colder than forecast low for the night. If you need a flashlight, please cover it with red cellophane.' "
Castlewood Canyon State Park
" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "
NPS Sky Measurements
Instrumented readings from the National Park Service Night Sky Program, providing the most accurate SQM and Bortle classifications.
Coyote Ridge
Fort Collins Natural Area
"Resolution Testing. 3 data sets collected in order to determine vertical and horizontal illuminance"
Coyote Ridge Parking
Fort Collins Natural Area
"Sky quality measurements were recorded at Coyote Ridge Parking in Fort Collins Natural Area on 1/18/2017. The site demonstrated a scientific darkness reading of 20.02 SQM."
International Dark Sky Parks
Premier locations certified for their exceptional dark sky quality and commitment to light pollution mitigation.
Jackson Lake State Park
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Town of Breckenridge, Colorado
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Local Astronomy Clubs
Connect with experts and fellow enthusiasts through local astronomical societies and community groups.