Houston Stargazing & Astronomy Report
Light pollution and stargazing locations near Houston
- City
- Houston
- Country
- United States
- Latitude
- 29.7604
- Longitude
- -95.3698
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 16.92
- Bortle class
- Class 9 (Class 9)
- Darkness Quotient
- 15%
- Dataset
- July 2026
Inner city sky
Houston: The Practical Verdict
Houston, a major city in Texas, is characterised by dense urban surroundings and extreme light pollution. The sky here is severely affected by urban light, rendering it unsuitable for deep-sky observation as the Milky Way is not visible.
Under these bright conditions, only the most luminous objects such as the Moon, planets, and bright stars are comfortably observed. Double stars and solar system events can offer some interest, while narrowband imaging should be approached with caution due to the abundant light pollution.
To experience a truly darker sky, consider travelling to Calhoun County, about 200 km south-west, where conditions improve significantly to Bortle Class 4.
At a Glance
- Overall
- Severe urban sky - This is a severely light-polluted urban sky. Only the Moon, planets, bright stars, and a few specialist targets remain practical.
- Milky Way
- Not visible - The Milky Way is not visible from this sky.
- 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
- Best nearby upgrade
- Calhoun County, Texas sits about 198 km south west and reaches Bortle 4, roughly 50x darker.
- Good dark window
- Houston'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 Houston?
No. Houston is a Bortle Class 9 sky with SQM 16.92, 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 Houston?
Houston is Bortle Class 9 (SQM 16.92), a severe urban sky for astronomy.
Is Houston good for stargazing?
Not for serious deep-sky observing. Houston is a severe urban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.
Is Houston good for astrophotography?
Broadband deep-sky imaging is heavily compromised from Houston and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Houston without careful processing.
What can you observe from Houston?
Primary targets from Houston 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 Houston?
The closest meaningfully darker mapped site is Liverpool, Texas, about 51 km south south east of Houston, reaching Bortle 7.
When is the sky darkest in Houston?
The sky over Houston is darkest around January, December.
Is light pollution in Houston getting better or worse?
There is not yet enough long-term data to give a confident trend for Houston.
north - poor
Heavy light pollution to the north. The lower 30 degrees of sky in this direction are unusable for faint targets.
north-north-east - poor
Strong skyglow on the north-north-east horizon. Stars below about 30 degrees in this direction are largely lost.
north-east - poor
The north-east sky is washed out near the horizon. Most constellation stars in the lower sky here are not visible.
east-north-east - poor
Strong skyglow on the east-north-east horizon. Stars below about 30 degrees in this direction are largely lost.
east - poor
The east horizon shows a strong orange-white glow. Star counts drop sharply below about 25 degrees here.
east-south-east - poor
Heavy light pollution to the east-south-east. The lower 30 degrees of sky in this direction are unusable for faint targets.
south-east - poor
Strong skyglow on the south-east horizon. Stars below about 30 degrees in this direction are largely lost.
south-south-east - poor
The south-south-east horizon shows a strong orange-white glow. Star counts drop sharply below about 25 degrees here.
south - poor
The south sky is washed out near the horizon. Most constellation stars in the lower sky here are not visible.
south-south-west - poor
Strong skyglow on the south-south-west horizon. Stars below about 30 degrees in this direction are largely lost.
south-west - poor
Heavy light pollution to the south-west. The lower 30 degrees of sky in this direction are unusable for faint targets.
west-south-west - poor
The west-south-west horizon shows a strong orange-white glow. Star counts drop sharply below about 25 degrees here.
west - poor
Strong skyglow on the west horizon. Stars below about 30 degrees in this direction are largely lost.
west-north-west - poor
Heavy light pollution to the west-north-west. The lower 30 degrees of sky in this direction are unusable for faint targets.
north-west - poor
The lower north-west sky is heavily light-polluted. Only the brightest stars stand out near the horizon.
north-north-west - poor
Heavy light pollution to the north-north-west. The lower 30 degrees of sky in this direction are unusable for faint targets.
zenith - poor
The zenith sky background is high. Most faint stars are absent and the Milky Way cannot be seen.
-
Liverpool, Texas
- Direction
- SSE
- Distance (km)
- 51.1
- SQM
- 19.34
- Bortle
- 7
-
Chambers County, Texas
- Direction
- E
- Distance (km)
- 91.1
- SQM
- 20.08
- Bortle
- 6
-
Matagorda County, Texas
- Direction
- SSW
- Distance (km)
- 110.6
- SQM
- 20.47
- Bortle
- 5
-
Calhoun County, Texas
- Direction
- SW
- Distance (km)
- 198.1
- SQM
- 21.16
- Bortle
- 4
-
Harmony, Texas
- Direction
- WNW
- Distance (km)
- 142.1
- SQM
- 19.73
- Bortle
- 6
-
Houston County, Texas
- Direction
- SE
- Distance (km)
- 189.2
- SQM
- 20.54
- Bortle
- 5