Nairobi Stargazing & Astronomy Report
Light pollution and stargazing locations near Nairobi
- City
- Nairobi
- Country
- Kenya
- Latitude
- -1.2921
- Longitude
- 36.8219
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 18.91
- Bortle class
- Class 7 (Class 7)
- Darkness Quotient
- 32%
- Dataset
- April 2026
Suburban/urban transition
Nairobi: The Practical Verdict
Nairobi is a poor urban/suburban sky for astronomy. The Milky Way is not realistically visible from this level of light pollution.
Realistic targets include Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing. With care, bright nebulae in narrowband and globular cluster cores are also accessible.
For darker conditions: Galole, Tana River County, about 258 km east south east, is the strongest nearby option (Bortle 2).
At a Glance
- Overall
- Poor urban/suburban sky - This is a poor sky for astronomy. The Moon, planets, and a few bright objects remain viable, but deep-sky work is difficult.
- Milky Way
- Not visible - The Milky Way is not realistically visible from this level of light pollution.
- Best targets from here
- Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing
- Do not prioritise
- visual deep-sky observing, broadband galaxies, reflection nebulae, Milky Way photography
- Best nearby upgrade
- Galole, Tana River County sits about 258 km east south east and reaches Bortle 2, roughly 13x darker.
- Good dark window
- Nairobi retains astronomical darkness throughout the year, so seasonality is less extreme than at higher latitudes. The main limitation is light pollution, not the length of the dark window.
Frequently Asked Questions
Can you see the Milky Way from Nairobi?
No. Nairobi is a Bortle Class 7 sky with SQM 18.91, 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 Nairobi?
Nairobi is Bortle Class 7 (SQM 18.91), a poor urban/suburban sky for astronomy.
Is Nairobi good for stargazing?
Not for serious deep-sky observing. Nairobi is a poor urban/suburban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.
Is Nairobi good for astrophotography?
Broadband deep-sky imaging is heavily compromised from Nairobi and a Bortle 4 or darker site is strongly recommended. Narrowband imaging of bright emission nebulae remains viable from Nairobi with appropriate Ha or OIII filters.
What can you observe from Nairobi?
Primary targets from Nairobi include Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.
Where are darker skies near Nairobi?
The closest meaningfully darker mapped site is Longonot sublocation, Nakuru, about 49 km north west of Nairobi, reaching Bortle 5.
When is the sky darkest in Nairobi?
The sky over Nairobi is darkest around March, September.
Is light pollution in Nairobi getting better or worse?
Long-term light pollution over Nairobi has been broadly stable across the available measurements.
north - good
Dark sky in the north direction with no obvious skyglow. Suitable for faint-object work at low elevation.
north-north-east - fair
The north-north-east sky is broadly dark with a small amount of glow at the horizon. Most objects in this direction are accessible.
north-east - fair
A trace of skyglow near the north-east horizon. Stars are clear throughout this direction except very close to the ground.
east-north-east - fair
Faint glow on the east-north-east horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.
east - fair
A faint diffuse glow on the east horizon. Stars are visible to low elevation, with minor losses near the ground.
east-south-east - fair
A faint diffuse glow on the east-south-east horizon. Stars are visible to low elevation, with minor losses near the ground.
south-east - good
Dark horizon to the south-east. Faint stars and extended objects in this direction behave much as they do overhead.
south-south-east - good
The south-south-east sky is dark to the horizon. Faint targets are accessible at all elevations here.
south - good
No noticeable light pollution to the south. The sky in this direction is dark to the horizon.
south-south-west - good
Dark sky in the south-south-west direction with no obvious skyglow. Suitable for faint-object work at low elevation.
south-west - good
The south-west horizon is dark. Faint stars are visible close to the ground.
west-south-west - good
Dark horizon to the west-south-west. Faint stars and extended objects in this direction behave much as they do overhead.
west - good
Dark horizon to the west. Faint stars and extended objects in this direction behave much as they do overhead.
west-north-west - good
No noticeable light pollution to the west-north-west. The sky in this direction is dark to the horizon.
north-west - good
Dark sky in the north-west direction with no obvious skyglow. Suitable for faint-object work at low elevation.
north-north-west - good
No noticeable light pollution to the north-north-west. The sky in this direction is dark to the horizon.
zenith - marginal
The zenith is brighter than natural. The Milky Way cannot be seen and faint deep-sky objects are not accessible.
-
Longonot sublocation, Nakuru
- Direction
- NW
- Distance (km)
- 49.4
- SQM
- 20.53
- Bortle
- 5
-
Ruchu ward, Murang'a County
- Direction
- NNE
- Distance (km)
- 50.4
- SQM
- 20.53
- Bortle
- 5
-
Galole, Tana River County
- Direction
- ESE
- Distance (km)
- 258.1
- SQM
- 21.73
- Bortle
- 2