Lubumbashi Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.94

Bortle class

Class 7 (Class 7)

Darkness Quotient

32%

Dataset

August 2026

Suburban/urban transition

Lubumbashi: The Practical Verdict

Lubumbashi, a major city in Haut-Katanga, is characterised by high levels of light pollution. The urban/suburban transition environment significantly hinders astronomical observations, with the sky quality being rated as poor. The main factor constraining observations is the pervasive light dome over the city.

From within the city, the only realistically accessible targets are the Moon, planets, bright double stars, and open clusters. The Milky Way is not visible, and deep-sky observations are severely restricted. While narrowband imaging can be attempted, it demands careful processing due to the sky conditions.

For better stargazing opportunities, Mwewa in Luapula Province, roughly 255 km to the east-north-east, offers a vastly improved Bortle 2 sky. It is recommended for those pursuing serious deep-sky observations.

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

Mwewa, Luapula Province sits about 253 km east north east and reaches Bortle 2, roughly 14x darker.

Good dark window

Lubumbashi 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 Lubumbashi?

No. Lubumbashi is a Bortle Class 7 sky with SQM 18.94, 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 Lubumbashi?

Lubumbashi is Bortle Class 7 (SQM 18.94), a poor urban/suburban sky for astronomy.

Is Lubumbashi good for stargazing?

Not for serious deep-sky observing. Lubumbashi 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 Lubumbashi good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Lubumbashi and a Bortle 4 or darker site is strongly recommended. Narrowband imaging of bright emission nebulae remains viable from Lubumbashi with appropriate Ha or OIII filters.

What can you observe from Lubumbashi?

Primary targets from Lubumbashi 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 Lubumbashi?

The closest meaningfully darker mapped site is Haut-Katanga, about 38 km north west of Lubumbashi, reaching Bortle 4.

When is the sky darkest in Lubumbashi?

The sky over Lubumbashi is darkest around June, July.

Is light pollution in Lubumbashi getting better or worse?

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

• Haut-Katanga

  Direction

  NW

  Distance (km)

  37.5

  SQM

  21.17

  Bortle

  4

• Pelu, Haut-Katanga

  Direction

  SE

  Distance (km)

  202.1

  SQM

  21.47

  Bortle

  3

• Mwewa, Luapula Province

  Direction

  ENE

  Distance (km)

  252.5

  SQM

  21.77

  Bortle

  2