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)
17.96
Bortle class
Class 9 (Class 9)
Darkness Quotient
23%
Dataset
April 2026

Inner city sky

Knoxville: The Practical Verdict

Knoxville, located in Tennessee, is a mid-size city with significant urban lighting, resulting in high light pollution. The overall verdict is a severe urban sky, where the visibility of faint celestial objects is heavily diminished.

From Knoxville, the Milky Way is completely obscured by the sky's brightness. For stargazing or observing planets, the Moon, bright stars, and planets are the most viable targets. Deep-sky observing and meteor viewing are not practical, as the sky clarity strongly limits such endeavours.

For those wishing to escape the city's light pollution, the John Muir Trail, northwest of Knoxville and approximately 100 km away, offers significantly darker skies with a Bortle 4 classification. It presents a meaningful improvement for deep-sky observation activities.

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
John Muir Trail, Tennessee sits about 101 km north west and reaches Bortle 4, roughly 16x darker.
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 17.96, 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 17.96), 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 Wayah Depot, North Carolina, about 97 km south south east of Knoxville, reaching Bortle 5.

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?

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

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.

  • John Muir Trail, Tennessee
    Direction
    NW
    Distance (km)
    100.5
    SQM
    20.95
    Bortle
    4
  • Wayah Depot, North Carolina
    Direction
    SSE
    Distance (km)
    97.2
    SQM
    20.66
    Bortle
    5
  • Sandy, Tennessee
    Direction
    WNW
    Distance (km)
    109
    SQM
    20.73
    Bortle
    5
  • Oldfort, Tennessee
    Direction
    SW
    Distance (km)
    115.3
    SQM
    20.58
    Bortle
    5
  • Grays Ridge Road, North Carolina
    Direction
    SE
    Distance (km)
    115.3
    SQM
    20.30
    Bortle
    6
  • Snowball Trail, North Carolina
    Direction
    ESE
    Distance (km)
    138.7
    SQM
    20.57
    Bortle
    5