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)
17.01
Bortle class
Class 9 (Class 9)
Darkness Quotient
16%
Dataset
April 2026

Inner city sky

Houston: The Practical Verdict

Houston is a large city located in Texas, United States, characterised by extreme light pollution due to its dense population and extensive development. Observing opportunities are severely limited within the city limits due to a sky brightness rating equivalent to Bortle Class 9.

Under these conditions, the Moon, planets, and the brightest stars remain the practical targets for general visual observing. Those pursuing narrowband astrophotography or electronically assisted astronomy (EAA) could find limited potential by focusing on high-contrast targets. However, faint deep-sky objects, broadband galaxies, and most nebulae are almost entirely washed out.

For a moderate improvement in sky quality, Burrantown, Texas, lies around 195 km east-south-east and offers a darker Bortle 5 environment. This enhancement provides access to fainter deep-sky targets that are unavailable from Houston. While still not pristine, it is a notable step away from the city's intense light pollution.

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
Limited nearby upgrade
Burrantown, Texas is the strongest nearby option but remains Bortle 5; the improvement is real but modest.
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 17.01, 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 17.01), 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 Alvin, Texas, about 41 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?

Long-term light pollution over Houston has been broadly stable across the available measurements.

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.

  • Alvin, Texas
    Direction
    SSE
    Distance (km)
    40.5
    SQM
    19.05
    Bortle
    7
  • Matagorda County, Texas
    Direction
    SSW
    Distance (km)
    108.1
    SQM
    20.29
    Bortle
    6
  • Chambers County, Texas
    Direction
    E
    Distance (km)
    86.7
    SQM
    19.55
    Bortle
    7
  • Hardin County, Texas
    Direction
    NE
    Distance (km)
    113.6
    SQM
    19.87
    Bortle
    6
  • TX 95, Texas
    Direction
    W
    Distance (km)
    169.7
    SQM
    20.20
    Bortle
    6
  • Burrantown, Texas
    Direction
    ESE
    Distance (km)
    194.4
    SQM
    20.47
    Bortle
    5