Moreno Valley Stargazing & Astronomy Report
Light pollution and stargazing locations near Moreno Valley
- City
- Moreno Valley
- Country
- United States
- Latitude
- 33.9375
- Longitude
- -117.2306
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 18.30
- Bortle class
- Class 8 (Class 8)
- Darkness Quotient
- 26%
- Dataset
- August 2026
City sky
Moreno Valley: The Practical Verdict
Moreno Valley is a small city in California, United States, situated east of Los Angeles within a landscape that doesn't favour dark skies. Despite its geographical positioning, the city's sky suffers from high light pollution, prominently limiting its stargazing potential. The bright urban sky background obliterates the Milky Way, and observing conditions are distinctly hampered by the glow from Los Angeles.
Realistically, the best celestial targets from Moreno Valley are the Moon, planets, and bright stars. Double stars and solar system events are also viable targets. However, any faint nebulae or broad-spectrum galaxies are almost entirely out of reach due to the overwhelming light pollution. Those interested in narrowband imaging may still find some potential here, but with considerable care due to the pervasive bright sky background.
This location is already among the darker sites within the area, making further travel unnecessary for improved darkness. However, for those seeking a significant reduction in light pollution, sites like Ventura County, California, offer darker skies and are located about 220 km to the west-south-west.
At a Glance
- Overall
- Poor city sky - This is a poor city sky. The Milky Way is not visible and most deep-sky observing is unrealistic from the location itself.
- Milky Way
- Not visible - The Milky Way is erased by the bright urban sky background.
- Best targets from here
- Moon, planets, bright stars, double stars, solar system events, narrowband imaging only with care
- Do not prioritise
- visual deep-sky observing, broadband galaxies, reflection nebulae, widefield Milky Way
- Already a strong sky
- Moreno Valley is already a strong astronomy location. There is no obvious reason to travel for a darker sky.
- Good dark window
- Moreno Valley's longest dark windows fall in December and January, with the shortest nights around June and July. Plan deep-sky sessions around the autumn and winter months for the best combination of long nights and true astronomical darkness.
Frequently Asked Questions
Can you see the Milky Way from Moreno Valley?
No. Moreno Valley is a Bortle Class 8 sky with SQM 18.30, so the Milky Way is not visible from the city. For Milky Way photography, look for a Bortle 4 or darker site.
What Bortle class is Moreno Valley?
Moreno Valley is Bortle Class 8 (SQM 18.30), a poor city sky for astronomy.
Is Moreno Valley good for stargazing?
Not for serious deep-sky observing. Moreno Valley is a poor city sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.
Is Moreno Valley good for astrophotography?
Broadband deep-sky imaging is heavily compromised from Moreno Valley and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Moreno Valley without careful processing.
What can you observe from Moreno Valley?
Primary targets from Moreno Valley include Moon, planets, bright stars, double stars, solar system events. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.
Where are darker skies near Moreno Valley?
The closest meaningfully darker mapped site is San Bernardino County, California, about 39 km east of Moreno Valley, reaching Bortle 6.
When is the sky darkest in Moreno Valley?
The sky over Moreno Valley is darkest around January, December.
Is light pollution in Moreno Valley getting better or worse?
Long-term light pollution over Moreno Valley has been broadly stable across the available measurements.
north - poor
The lower north sky is heavily light-polluted. Only the brightest stars stand out near the horizon.
north-north-east - marginal
The north-north-east sky shows a clear glow near the ground. Above about 20 degrees the sky returns to workable.
north-east - marginal
Noticeable glow on the north-east horizon. Stars below about 20 degrees in this direction are dimmed.
east-north-east - fair
The east-north-east sky is broadly dark with a small amount of glow at the horizon. Most objects in this direction are accessible.
east - fair
The east sky is broadly dark with a small amount of glow at the horizon. Most objects in this direction are accessible.
east-south-east - good
The east-south-east horizon is dark. Faint stars are visible close to the ground.
south-east - fair
A faint diffuse glow on the south-east horizon. Stars are visible to low elevation, with minor losses near the ground.
south-south-east - fair
Faint glow on the south-south-east horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.
south - marginal
The south lower sky is measurably brighter than the darker quarters. Limit faint work to above about 20 degrees here.
south-south-west - fair
A trace of skyglow near the south-south-west horizon. Stars are clear throughout this direction except very close to the ground.
south-west - fair
Light glow detectable on the south-west horizon. The effect fades quickly with elevation and does not affect overhead work.
west-south-west - marginal
Soft skyglow visible on the west-south-west horizon. Mid-brightness stars survive at low elevation; the faintest do not.
west - marginal
The west sky shows a clear glow near the ground. Above about 20 degrees the sky returns to workable.
west-north-west - poor
The lower west-north-west sky is heavily light-polluted. Only the brightest stars stand out near the horizon.
north-west - marginal
Soft skyglow visible on the north-west horizon. Mid-brightness stars survive at low elevation; the faintest do not.
north-north-west - poor
The north-north-west horizon shows a strong orange-white glow. Star counts drop sharply below about 25 degrees here.
zenith - marginal
The zenith is brighter than natural. The Milky Way cannot be seen and faint deep-sky objects are not accessible.
-
San Bernardino County, California
- Direction
- E
- Distance (km)
- 38.6
- SQM
- 20.02
- Bortle
- 6
-
Los Angeles County, California
- Direction
- SW
- Distance (km)
- 165
- SQM
- 21.66
- Bortle
- 3
-
Wilson Trail, California
- Direction
- SE
- Distance (km)
- 112.3
- SQM
- 20.21
- Bortle
- 6
-
El Rancho Escondido Road, California
- Direction
- WSW
- Distance (km)
- 127.8
- SQM
- 20.24
- Bortle
- 6
-
Ventura County, California
- Direction
- WSW
- Distance (km)
- 220
- SQM
- 21.69
- Bortle
- 3