Bristol Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.45

Bortle class

Class 8 (Class 8)

Darkness Quotient

27%

Dataset

April 2026

City sky

Bristol: The Practical Verdict

Bristol is a mid-sized city in the south-west of England. The urban lighting results in a poor sky for astronomy, with the Milky Way entirely erased and limiting visual deep-sky observations. High light pollution significantly impacts sky quality, making the city less ideal for stargazing.

Targets such as the Moon, planets, and bright stars remain visible and sufficiently rewarding for casual observation. Narrowband imaging is possible with careful planning, but broadband techniques struggle against urban sky brightness. Avoid faint nebulae and meteor showers, as conditions here are highly unfavourable for such observations.

For noticeably darker skies, travelling south-west to Winkleigh, around 115 km away, provides a significant improvement, allowing better conditions for deep-sky observing and astrophotography. Annual planning suggests focusing on winter months when nights are longer and darkness is less affected by seasonal limitations.

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 115 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 18.45, 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 18.45), 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 Congresbury, about 17 km west south west of Bristol, reaching Bortle 5.

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?

There is not yet enough long-term data to give a confident trend for Bristol.

• Congresbury

  Direction

  WSW

  Distance (km)

  16.9

  SQM

  20.40

  Bortle

  5

• Moorside

  Direction

  SSE

  Distance (km)

  59.2

  SQM

  20.92

  Bortle

  4

• Listoke

  Direction

  SSW

  Distance (km)

  54.7

  SQM

  20.67

  Bortle

  5

• Dorcan

  Direction

  ENE

  Distance (km)

  59.1

  SQM

  20.66

  Bortle

  5

• Penllyn

  Direction

  W

  Distance (km)

  58.1

  SQM

  20.29

  Bortle

  6

• Winkleigh

  Direction

  SW

  Distance (km)

  115.3

  SQM

  21.26

  Bortle

  4