Orosi.

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

Bortle Scale
4
Best Regional Reading
Sky Quality
21.63
SQM Zenith Value
Verified Sites
5
Community Vetted
Dark Sky Parks
2
IDA Certified Nearby

Quick Guide for Orosi

  • Top Community Pick: TAA Arthur Pursell Observatory (APO) (~23.4 miles)
  • Best Scientific Reading: Bortle 4.0 at Buena Vista Peak
  • Local Experts: Tulare Astronomical Association
  • Verified Observations: 5 distinct spots

If you’re looking to escape the light pollution of Orosi, you’re in luck. While enthusiasts often gather at TAA Arthur Pursell Observatory (APO) for its accessibility, scientific audits conducted by the National Park Service at Buena Vista Peak provide the most accurate reading of the regional sky quality, measuring at a Bortle 4.0. Atmospheric stability in the Orosi region is often influenced by local topography, which can help settle the air for high-magnification viewing.

The Best Times for Stargazing in Orosi

For the best results in Orosi, aim for a ‘New Moon’ window. In these dark-sky conditions, the absence of moonlight allows the Milky Way to cast visible shadows.

Expert Tips for Orosi Observers

Because TAA Arthur Pursell Observatory (APO) is a developed site, it often features established viewing pads and specialized equipment. 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%

TAA Arthur Pursell Observatory (APO)

23.4 mi
Distance

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

Tulare, CA 93274
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Active Viewing Spot Confidence: 77.5%

Big Stump Grove, Kings Canyon National Park, California

22.8 mi
Distance

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

Wilsonia, CA 93628
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Community Gathering Point Confidence: 62.5%

Riverway Elementary School

12.7 mi
Distance

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

Visalia, CA 93291
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Active Viewing Spot Confidence: 82.5%

Eastman Lake

57.6 mi
Distance

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

Raymond, CA 93653
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Active Viewing Spot Confidence: 67.5%

RiverPark Shopping Center

30.5 mi
Distance

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

Fresno, CA 93720
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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.

Buena Vista Peak

Kings Canyon NP

21.38 SQM
Bortle Class 4

"Site on summit of Buena Vista Peak, rocky outcrop on north side of the broad summit. Seeing very good, transparency good, hazy toward the valley. Few high clouds far west and southwest. Considerable glare from lights in the valley, must turn away or move away from the summit to block from view to keep night vision. Light dome from Fresno/Visalia extends to 45 degrees above the horizon, sky at zenith pretty dark, however, and easter sky quite dark. Airglow fairly strong."

Observation Date
6/12/2004
Elevation
2325m
Zenith Brightness
21.76

Buena Vista Peak

Kings Canyon NP

21.63 SQM
Bortle Class 4

"Slog through snow to reach summit, transparency good, seeing good. Light from Fresno/Visalia subdued by haze and fog in the valley. Sky at zenith pretty dark, zodiacal light faint above light domes to west, gegenschein barely seen near Jupiter. Looking to the northeast airglow very slight. Light domes fairly bright, degrade night vision, but turning away reveals an excellent sky. Two images on first data set not aligned, slightly darker because of instrument runaway, clouds to west in first data set reflect off light domes amplifying light pollution. Second data set excellent, only a small cloud remained over Fresno."

Observation Date
4/27/2006
Elevation
2326m
Zenith Brightness
21.9

International Dark Sky Parks

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

IDA Certified Distance: 122.4 miles

Death Valley National Park

Death Valley National Park is distant enough from the large cities of the southwest so that much of the night sky above the desert floor is near pristine and…

Category
Dark Sky Park
Certified
2013
Land Area
13,848 km2
Coordinates
36.4702, -117.0884
IDA Certified Distance: 262.6 miles

Joshua Tree National Park

Joshua Tree National Park is a U.S. national park sprawling over land that straddles the boundary of two deserts: the higher Mojave Desert and lower Colorado…

Category
Dark Sky Park
Certified
2017
Land Area
3,218 km2
Coordinates
33.8971, -115.9511

Local Astronomy Clubs

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

NASA Night Sky Club ID
#468

Tulare Astronomical Association

Tulare, CA

NASA Night Sky Club ID
#373

Central Valley Astronomers

Fresno, CA