Fontana.
The definitive guide to dark skies and celestial observation in Fontana, CA. Verified using National Park Service and NASA Night Sky Network Clubs data.
Quick Guide for Fontana
- Top Community Pick: High Desert Astronomical Society (~32.0 miles)
- Best Scientific Reading: Bortle 8.0 at Sycamore Canyon Park
- Local Experts: San Bernardino Valley Amateur Astronomers
- Verified Observations: 5 distinct spots
If you’re looking to escape the light pollution of Fontana, you’re in luck. While enthusiasts often gather at High Desert Astronomical Society for its accessibility, scientific audits conducted by the National Park Service at Sycamore Canyon Park provide the most accurate reading of the regional sky quality, measuring at a Bortle 8.0. The local landscape of Fontana offers several pockets of darkness that are perfect for deep-sky observation.
The Best Times for Stargazing in Fontana
In the Fontana area, the moon’s phase is less critical than atmospheric ‘seeing’ conditions. Even on moonlit nights, bright planets like Jupiter and Saturn remain excellent targets.
Expert Tips for Fontana Observers
Before heading out to High Desert Astronomical Society, we recommend arriving during civil twilight to scout the terrain safely. Binoculars are a favorite for regulars this location 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.
California Guide
Local Top Spots
Community-vetted locations known for clear horizons and accessibility for telescopes and astrophotography.
High Desert Astronomical Society
" The High Desert Astronomical Society will be present with telescopes, providing a guided tour of the Moon, planets and other celestial objects for visitors. International Observe the Moon Night is sponsored by NASA’s Lunar Reconnaissance Orbiter (LRO) mission and the Solar System Exploration Division at NASA’s Goddard Space Flight Center, with many contributors. "
Garvey Ranch Observatory
" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "
Mount Wilson Observatory
" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "
Griffith Observatory
" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "
Veterans Freedom 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.
Sycamore Canyon Park
City of Riverside, CA
"Glare from sewer plant and Riverside city excessive. Below 60 zenith angle only 1st mag stars visible. At zenith constellations are seen, stars in little dipper missing."
Glendora Ridge
San Gabriel Mountains NM
"Some high clouds reflecting lights high in the sky, seeing good, transparency excellent. Bright glare sources throughout eastern L.A. and inland cities cast shadows. Milky Way invisible."
International Dark Sky Parks
Premier locations certified for their exceptional dark sky quality and commitment to light pollution mitigation.
Anza-Borrego Desert State Park
Anza-Borrego Desert State Park is state park in southern California, U.S. By land area, it is the country’s second-largest state park, after New York’s…
Borrego Springs, California
Located 88 miles northeast of San Diego in San Diego County, California, Borrego Springs has long been a haven for star gazers, both professional and amateur.
Local Astronomy Clubs
Connect with experts and fellow enthusiasts through local astronomical societies and community groups.