Algiers Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

17.19

Bortle class

Class 9 (Class 9)

Darkness Quotient

17%

Dataset

May 2026

Inner city sky

Algiers: The Practical Verdict

Algiers, the bustling capital of Algeria, is a major city characterised by severe urban sky conditions. Under this extreme light pollution, the night sky offers limited options for astronomers, with the Milky Way entirely absent and most deep-sky observing unrewarding due to the pervasive light dome.

What the Algiers sky does allow are the brighter celestial targets. Observers can focus on viewing and imaging the Moon, planets, and bright stars. Narrowband imaging can be attempted with care, while deep-sky objects, broadband galaxies, and nebulae should largely be avoided. If you wish for a meaningful improvement, particularly for deep-sky pursuits, travelling further afield is required.

The best nearby upgrade for stargazing is Benhar, Aïn Oussara, located about 135 km to the south. This site offers a significantly darker Bortle 4 sky, making it a viable option for those serious about deep-sky astronomy.

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

Benhar, Aïn Oussara sits about 134 km south and reaches Bortle 4, roughly 31x darker.

Good dark window

Algiers'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 Algiers?

No. Algiers is a Bortle Class 9 sky with SQM 17.19, 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 Algiers?

Algiers is Bortle Class 9 (SQM 17.19), a severe urban sky for astronomy.

Is Algiers good for stargazing?

Not for serious deep-sky observing. Algiers is a severe urban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.

Is Algiers good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Algiers and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Algiers without careful processing.

What can you observe from Algiers?

Primary targets from Algiers 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 Algiers?

The closest meaningfully darker mapped site is Bou Aidel, Boumerdes, about 47 km east south east of Algiers, reaching Bortle 7.

When is the sky darkest in Algiers?

The sky over Algiers is darkest around January, December.

Is light pollution in Algiers getting better or worse?

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

• Bou Aroua, Tipaza

  Direction

  WSW

  Distance (km)

  69.2

  SQM

  20.33

  Bortle

  5

• Ouled Deide, Médéa

  Direction

  S

  Distance (km)

  69.8

  SQM

  20.19

  Bortle

  6

• Bou Aidel, Boumerdes

  Direction

  ESE

  Distance (km)

  46.8

  SQM

  19.21

  Bortle

  7

• Taguedit, Bouira

  Direction

  SE

  Distance (km)

  115.6

  SQM

  20.57

  Bortle

  5

• Benhar, Aïn Oussara

  Direction

  S

  Distance (km)

  134.2

  SQM

  20.93

  Bortle

  4

• Ighzer Lejnan, Setif

  Direction

  E

  Distance (km)

  179.1

  SQM

  20.28

  Bortle

  6