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
- August 2026
Inner city sky
Knoxville: The Practical Verdict
Knoxville, a mid-size city in Tennessee, offers challenging conditions for stargazing. The severe urban sky, dominated by high light pollution, makes the Milky Way invisible and limits observations to the brightest celestial objects. The predominant limiting factor here is the dense light pollution which significantly dims the night sky.
The best visual targets in Knoxville include the Moon, planets, and double stars, with opportunities for narrowband imaging if handled carefully. Attempting to view faint deep-sky objects is largely unproductive due to the bright sky background. It's best to focus efforts on the solar system's brilliance and bright open clusters that still punch through the urban glow.
While regional improvement options exist, such as heading approximately 105 km south-south-east to a Bortle 5 area in North Carolina, the improvement there is modest. Local transparency and sky conditions may play a more decisive role than merely moving to this slightly darker location.
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
- 25, North Carolina 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 Greene County, Tennessee, about 84 km east north 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.
-
Greene County, Tennessee
- Direction
- ENE
- Distance (km)
- 83.9
- SQM
- 20.49
- Bortle
- 5
-
25, North Carolina
- Direction
- SSE
- Distance (km)
- 102.5
- SQM
- 20.62
- Bortle
- 5
-
Green Apple Lane, North Carolina
- Direction
- S
- Distance (km)
- 98.1
- SQM
- 20.43
- Bortle
- 5
-
Dunn Lane, Tennessee
- Direction
- SW
- Distance (km)
- 122.2
- SQM
- 20.49
- Bortle
- 5
-
Wolf Ford, North Carolina
- Direction
- ESE
- Distance (km)
- 128.6
- SQM
- 20.45
- Bortle
- 5
-
Squib, Kentucky
- Direction
- WNW
- Distance (km)
- 136.6
- SQM
- 20.52
- Bortle
- 5