Milan Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

17.41

Bortle class

Class 9 (Class 9)

Darkness Quotient

18%

Dataset

August 2026

Inner city sky

Milan: The Practical Verdict

Milan, a significant urban centre in Italy, suffers from severe urban sky conditions due primarily to its extreme light pollution. The Milky Way is entirely absent from view here, making serious astronomical observation very challenging. The primary limiting factor is the high level of light pollution, leaving only the brightest celestial objects visible.

From this sky, observers should focus on the Moon, nearby planets, and bright stars. Double stars and solar system events are also reasonable targets. Narrowband imaging can yield results only with great care, while broader subjects like nebulae and galaxies are best avoided.

For a significant improvement, it's worth driving west approximately 190 km to La Plagne-Tarentaise in Auvergne-Rhône-Alpes. This site offers a markedly darker sky suitable for deep-sky observing, classified in Bortle class 4 conditions.

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 Plagne-Tarentaise, Auvergne-Rhône-Alpes sits about 192 km west and reaches Bortle 4, roughly 34x darker.

Moderate dark window

Milan'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 Milan?

No. Milan is a Bortle Class 9 sky with SQM 17.41, 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 Milan?

Milan is Bortle Class 9 (SQM 17.41), a severe urban sky for astronomy.

Is Milan good for stargazing?

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

Is Milan good for astrophotography?

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

What can you observe from Milan?

Primary targets from Milan 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 Milan?

The closest meaningfully darker mapped site is Campalestro, Lombardy, about 48 km south west of Milan, reaching Bortle 6.

When is the sky darkest in Milan?

The sky over Milan is darkest around January, December.

Is light pollution in Milan getting better or worse?

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

• Campalestro, Lombardy

  Direction

  SW

  Distance (km)

  47.9

  SQM

  19.77

  Bortle

  6

• Cosola, Piedmont

  Direction

  S

  Distance (km)

  89.8

  SQM

  20.26

  Bortle

  6

• Alpe Massucco, Piedmont

  Direction

  WNW

  Distance (km)

  98.4

  SQM

  20.25

  Bortle

  6

• Lozzola, Emilia-Romagna

  Direction

  SSE

  Distance (km)

  119

  SQM

  20.36

  Bortle

  5

• La Plagne-Tarentaise, Auvergne-Rhône-Alpes

  Direction

  W

  Distance (km)

  191.8

  SQM

  21.24

  Bortle

  4

• Valdieri, Piedmont

  Direction

  SW

  Distance (km)

  212.5

  SQM

  20.58

  Bortle

  5