Paris Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

17.74

Bortle class

Class 9 (Class 9)

Darkness Quotient

21%

Dataset

July 2026

Inner city sky

Paris: The Practical Verdict

Paris is a major global metropolis within the Ile-de-France region. Unfortunately, the severe urban glow here offers a challenging environment for astronomy, with high light pollution severely impacting sky quality.

From the city's skies, the Milky Way remains unseen, with stargazers limited primarily to bright targets. The Moon, planets, and double stars are your best bets, while efforts to capture faint nebulae or engage in deep-sky astronomy are futile due to the intense brightness.

For improved conditions, consider heading to La Foresterie, Pays de la Loire, located around 185 km to the west-south-west. It offers meaningfully darker skies, ideal for deep-sky enthusiasts willing to undertake the longer drive.

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

La Foresterie, Pays de la Loire sits about 187 km west south west and reaches Bortle 4, roughly 23x darker.

Moderate dark window

Paris'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 Paris?

No. Paris is a Bortle Class 9 sky with SQM 17.74, 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 Paris?

Paris is Bortle Class 9 (SQM 17.74), a severe urban sky for astronomy.

Is Paris good for stargazing?

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

Is Paris good for astrophotography?

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

What can you observe from Paris?

Primary targets from Paris 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 Paris?

The closest meaningfully darker mapped site is Lamorlaye, Hauts-de-France, about 34 km south east of Paris, reaching Bortle 7.

When is the sky darkest in Paris?

The sky over Paris is darkest around January, December.

Is light pollution in Paris getting better or worse?

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

• Lamorlaye, Hauts-de-France

  Direction

  SE

  Distance (km)

  34.1

  SQM

  19.44

  Bortle

  7

• Ecalles, Normandy

  Direction

  NW

  Distance (km)

  110.8

  SQM

  20.44

  Bortle

  5

• Fransu, Hauts-de-France

  Direction

  S

  Distance (km)

  142.5

  SQM

  20.65

  Bortle

  5

• La Foresterie, Pays de la Loire

  Direction

  WSW

  Distance (km)

  187.2

  SQM

  21.13

  Bortle

  4

• L'Église, Normandy

  Direction

  W

  Distance (km)

  195.8

  SQM

  20.78

  Bortle

  5