Detroit Stargazing & Astronomy Report
Light pollution and stargazing locations near Detroit
- City
- Detroit
- Country
- United States
- Latitude
- 42.3314
- Longitude
- -83.0458
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 17.23
- Bortle class
- Class 9 (Class 9)
- Darkness Quotient
- 17%
- Dataset
- July 2026
Inner city sky
Detroit: The Practical Verdict
Detroit, located in Michigan, is a major urban centre with severe light pollution. Astronomy from here is significantly compromised, with a Bortle Class 9 sky and the Milky Way entirely obscured.
Observing opportunities in Detroit are mostly limited to bright solar system objects like the Moon, planets, and double stars. Narrowband imaging requires careful conditions, and faint deep-sky objects should be strenuously avoided due to the overwhelming light pollution.
For a modest improvement, head south to Ballville Township, Ohio, about 120 km away. Though this site offers better conditions, the improvement is only partial and does not reach true dark-sky levels.
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
- Ballville Township, Ohio is the strongest nearby option but remains Bortle 5; the improvement is real but modest.
- Good dark window
- Detroit'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 Detroit?
No. Detroit is a Bortle Class 9 sky with SQM 17.23, 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 Detroit?
Detroit is Bortle Class 9 (SQM 17.23), a severe urban sky for astronomy.
Is Detroit good for stargazing?
Not for serious deep-sky observing. Detroit is a severe urban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.
Is Detroit good for astrophotography?
Broadband deep-sky imaging is heavily compromised from Detroit and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Detroit without careful processing.
What can you observe from Detroit?
Primary targets from Detroit 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 Detroit?
The closest meaningfully darker mapped site is Erie County, Ohio, about 78 km south south east of Detroit, reaching Bortle 6.
When is the sky darkest in Detroit?
The sky over Detroit is darkest around January, December.
Is light pollution in Detroit getting better or worse?
Long-term light pollution over Detroit has been broadly stable across the available measurements.
north - poor
Bright skyglow dominates the lower north sky. This direction is not suitable for faint-object work at low elevation.
north-north-east - marginal
The lower north-north-east sky is moderately light-polluted. Useful for bright targets above about 20 degrees only.
north-east - marginal
Moderate brightening on the north-east horizon. Star counts at low elevation here are reduced.
east-north-east - fair
The east-north-east horizon shows a slight brightening. Workable for most targets above about 10 degrees elevation.
east - fair
The east horizon shows a slight brightening. Workable for most targets above about 10 degrees elevation.
east-south-east - fair
The east-south-east horizon is mostly dark with a hint of light pollution. Faint stars are accessible above about 10 degrees.
south-east - fair
The south-east horizon shows a slight brightening. Workable for most targets above about 10 degrees elevation.
south-south-east - fair
The south-south-east horizon is mostly dark with a hint of light pollution. Faint stars are accessible above about 10 degrees.
south - fair
The south horizon shows a slight brightening. Workable for most targets above about 10 degrees elevation.
south-south-west - marginal
A soft but obvious glow marks the south-south-west horizon. The lowest 15-20 degrees of sky in this direction are degraded.
south-west - marginal
The lower south-west sky is moderately light-polluted. Useful for bright targets above about 20 degrees only.
west-south-west - poor
A bright dome of skyglow sits on the west-south-west horizon. Faint stars are suppressed up to roughly 25 degrees elevation.
west - poor
A bright dome of skyglow sits on the west horizon. Faint stars are suppressed up to roughly 25 degrees elevation.
west-north-west - poor
Strong artificial brightening to the west-north-west. Faint and mid-brightness stars near the horizon are absent.
north-west - poor
Strong artificial brightening to the north-west. Faint and mid-brightness stars near the horizon are absent.
north-north-west - poor
Significant glow on the north-north-west horizon. Avoid this direction for objects below 30 degrees elevation.
zenith - poor
Heavy skyglow overhead. A few dozen stars and the brightest planets are accessible to the naked eye.
-
Erie County, Ohio
- Direction
- SSE
- Distance (km)
- 78.2
- SQM
- 20.03
- Bortle
- 6
-
Ballville Township, Ohio
- Direction
- S
- Distance (km)
- 118.8
- SQM
- 20.60
- Bortle
- 5
-
Lambton Shores, Ontario
- Direction
- NE
- Distance (km)
- 135.2
- SQM
- 20.55
- Bortle
- 5
-
Fayette Township, Michigan
- Direction
- WSW
- Distance (km)
- 138.7
- SQM
- 20.58
- Bortle
- 5
-
Mifflin Township, Ohio
- Direction
- S
- Distance (km)
- 173.9
- SQM
- 20.50
- Bortle
- 5
-
7462, Indiana
- Direction
- SW
- Distance (km)
- 241
- SQM
- 20.64
- Bortle
- 5