Knoxville Stargazing & Astronomy Report

Light pollution and stargazing locations near Knoxville

City
Knoxville
Country
United States
Latitude
35.9606
Longitude
-83.9207

Key Sky Quality Metrics

SQM (mag/arcsec²)
17.99
Bortle class
Class 9 (Class 9)
Darkness Quotient
23%
Dataset
July 2026

Inner city sky

Knoxville: The Practical Verdict

Knoxville, a mid-size city in Tennessee, is characterised by its dense urban environment and bright skies. Unfortunately, the city's severe urban light pollution means that the Milky Way is not visible from this location. Stargazing here is heavily compromised by the high light pollution levels.

From within Knoxville, observers are largely limited to focusing on the Moon, planets, bright stars, and double stars. Narrowband imaging is possible with care, particularly on the brightest nebulae or during solar system events, but visual deep-sky observing is highly ineffective under such conditions.

While there are darker skies to the west north west at Saint John, Tennessee, offering Bortle 5 conditions, the improvement is moderate. Most meaningful gains in sky quality would involve a much longer drive north to a Bortle 4 location, but the reward may not justify the distance unless a specific target requires it.

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
Saint John, Tennessee is the strongest nearby option but remains Bortle 5; the improvement is real but modest.
Good dark window
Knoxville'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 Knoxville?

No. Knoxville is a Bortle Class 9 sky with SQM 17.99, 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 Knoxville?

Knoxville is Bortle Class 9 (SQM 17.99), a severe urban sky for astronomy.

Is Knoxville good for stargazing?

Not for serious deep-sky observing. Knoxville is a severe urban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.

Is Knoxville good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Knoxville and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Knoxville without careful processing.

What can you observe from Knoxville?

Primary targets from Knoxville 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 Knoxville?

The closest meaningfully darker mapped site is Hales Crossroads, Tennessee, about 63 km east north east of Knoxville, reaching Bortle 6.

When is the sky darkest in Knoxville?

The sky over Knoxville is darkest around January, December.

Is light pollution in Knoxville getting better or worse?

There is not yet enough long-term data to give a confident trend for Knoxville.

north - fair

A trace of skyglow near the north horizon. Stars are clear throughout this direction except very close to the ground.

north-north-east - good

The north-north-east horizon is dark. Faint stars are visible close to the ground.

north-east - good

Dark horizon to the north-east. Faint stars and extended objects in this direction behave much as they do overhead.

east-north-east - fair

A faint diffuse glow on the east-north-east horizon. Stars are visible to low elevation, with minor losses near the ground.

east - good

Dark horizon to the east. Faint stars and extended objects in this direction behave much as they do overhead.

east-south-east - good

The east-south-east sky is dark to the horizon. Faint targets are accessible at all elevations here.

south-east - good

Dark sky in the south-east direction with no obvious skyglow. Suitable for faint-object work at low elevation.

south-south-east - good

Dark horizon to the south-south-east. Faint stars and extended objects in this direction behave much as they do overhead.

south - fair

The south sky is broadly dark with a small amount of glow at the horizon. Most objects in this direction are accessible.

south-south-west - fair

Faint glow on the south-south-west horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.

south-west - fair

A faint diffuse glow on the south-west horizon. Stars are visible to low elevation, with minor losses near the ground.

west-south-west - marginal

The west-south-west lower sky is measurably brighter than the darker quarters. Limit faint work to above about 20 degrees here.

west - fair

Faint glow on the west horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.

west-north-west - fair

A trace of skyglow near the west-north-west horizon. Stars are clear throughout this direction except very close to the ground.

north-west - fair

Faint glow on the north-west horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.

north-north-west - fair

A trace of skyglow near the north-north-west horizon. Stars are clear throughout this direction except very close to the ground.

zenith - poor

The zenith sky background is high. Most faint stars are absent and the Milky Way cannot be seen.

  • Claiborne County, Tennessee
    Direction
    ENE
    Distance (km)
    65.4
    SQM
    20.42
    Bortle
    5
  • Hales Crossroads, Tennessee
    Direction
    ENE
    Distance (km)
    62.8
    SQM
    20.26
    Bortle
    6
  • Staffordtown, Tennessee
    Direction
    SSW
    Distance (km)
    113.5
    SQM
    20.37
    Bortle
    5
  • Kidder, Kentucky
    Direction
    NNW
    Distance (km)
    125.4
    SQM
    20.53
    Bortle
    5
  • Cook Cove Road, North Carolina
    Direction
    ESE
    Distance (km)
    137
    SQM
    20.57
    Bortle
    5
  • Saint John, Tennessee
    Direction
    WNW
    Distance (km)
    145.9
    SQM
    20.73
    Bortle
    5