Bristol Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.51

Bortle class

Class 8 (Class 8)

Darkness Quotient

28%

Dataset

May 2026

City sky

Bristol: The Practical Verdict

Bristol, a mid-sized city in the City of Bristol, suffers from high light pollution, making it challenging for serious astronomical observations. The overall quality is poor, with a bright urban sky background that completely erases the Milky Way. The primary limitation here is the pervasive light pollution, restricting visibility to only the brightest celestial objects.

The realistic targets in Bristol include the Moon, planets, and bright stars, which can still be appreciated despite the urban glow. Double stars and solar system events also remain viable targets, with narrowband imaging possible only with care. However, deep-sky observations are not recommended due to the overwhelming brightness.

For those seeking a notably darker sky experience, Winkleigh lies about 115 km to the south-west and offers improved conditions with a Bortle class 4 sky. It would be a meaningful upgrade for any serious stargazer.

At a Glance

Overall

Poor city sky - This is a poor city sky. The Milky Way is not visible and most deep-sky observing is unrealistic from the location itself.

Milky Way

Not visible - The Milky Way is erased by the bright urban sky background.

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

Winkleigh sits about 114 km south west and reaches Bortle 4, roughly 13x darker.

Moderate dark window

Bristol'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 Bristol?

No. Bristol is a Bortle Class 8 sky with SQM 18.51, 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 Bristol?

Bristol is Bortle Class 8 (SQM 18.51), a poor city sky for astronomy.

Is Bristol good for stargazing?

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

Is Bristol good for astrophotography?

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

What can you observe from Bristol?

Primary targets from Bristol 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 Bristol?

The closest meaningfully darker mapped site is Nailsea, about 12 km west of Bristol, reaching Bortle 6.

When is the sky darkest in Bristol?

The sky over Bristol is darkest around January, December. Significant summer limitation: around 59 nights per year have no true astronomical darkness.

Is light pollution in Bristol getting better or worse?

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

• Nailsea

  Direction

  W

  Distance (km)

  12.4

  SQM

  20.23

  Bortle

  6

• Puckington

  Direction

  SSW

  Distance (km)

  59.2

  SQM

  20.98

  Bortle

  4

• Hinton St. Mary

  Direction

  SSE

  Distance (km)

  59

  SQM

  20.89

  Bortle

  4

• Charlton-All-Saints

  Direction

  SE

  Distance (km)

  71.8

  SQM

  20.59

  Bortle

  5

• Winkleigh

  Direction

  SW

  Distance (km)

  114.4

  SQM

  21.29

  Bortle

  4

• Llanegwad

  Direction

  WNW

  Distance (km)

  115.9

  SQM

  21.19

  Bortle

  4