Durham Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.44

Bortle class

Class 7 (Class 7)

Darkness Quotient

39%

Dataset

May 2026

Suburban/urban transition

Durham: The Practical Verdict

Durham, a small city in County Durham, struggles with high light pollution. This results in a poor urban/suburban sky that significantly hampers stargazing. The primary conditions are restrictive, especially for deep-sky enthusiasts.

From Durham, the Milky Way is not visible, and observational opportunities are limited to brighter celestial objects like the Moon, planets, and bright double stars. Narrowband imaging can manage bright nebulae with care, but deep-sky observing in broadband is impractical.

For those seeking a dark-sky upgrade, Kelhead to the west, about 115 km away, offers a significantly darker experience under Bortle 3 conditions. This site is a considerable improvement for serious deep-sky observations.

At a Glance

Overall

Poor urban/suburban sky - This is a poor sky for astronomy. The Moon, planets, and a few bright objects remain viable, but deep-sky work is difficult.

Milky Way

Not visible - The Milky Way is not realistically visible from this level of light pollution.

Best targets from here

Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing

Do not prioritise

visual deep-sky observing, broadband galaxies, reflection nebulae, Milky Way photography

Best nearby upgrade

Kelhead sits about 116 km west and reaches Bortle 3, roughly 7.0x darker.

Moderate dark window

Durham's limiting factor is not only light pollution. Around midsummer, Durham loses true astronomical darkness entirely, so deep-sky observing and imaging are strongly seasonal. Plan serious sessions around the darker months.

Frequently Asked Questions

Can you see the Milky Way from Durham?

No. Durham is a Bortle Class 7 sky with SQM 19.44, 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 Durham?

Durham is Bortle Class 7 (SQM 19.44), a poor urban/suburban sky for astronomy.

Is Durham good for stargazing?

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

Is Durham good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Durham and a Bortle 4 or darker site is strongly recommended. Narrowband imaging of bright emission nebulae remains viable from Durham with appropriate Ha or OIII filters.

What can you observe from Durham?

Primary targets from Durham include Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.

Where are darker skies near Durham?

The closest meaningfully darker mapped site is Guyzance, about 60 km east north east of Durham, reaching Bortle 5.

When is the sky darkest in Durham?

The sky over Durham is darkest around January, December. Significant summer limitation: around 87 nights per year have no true astronomical darkness.

Is light pollution in Durham getting better or worse?

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

• Trimdon

  Direction

  SE

  Distance (km)

  12.2

  SQM

  20.19

  Bortle

  6

• Maulds Meaburn Moor

  Direction

  WSW

  Distance (km)

  67.8

  SQM

  21.19

  Bortle

  4

• Appersett

  Direction

  SW

  Distance (km)

  65.8

  SQM

  21.07

  Bortle

  4

• Kelhead

  Direction

  W

  Distance (km)

  115.9

  SQM

  21.55

  Bortle

  3

• Ilderton

  Direction

  NNW

  Distance (km)

  83.3

  SQM

  20.78

  Bortle

  5

• Guyzance

  Direction

  ENE

  Distance (km)

  60.2

  SQM

  20.30

  Bortle

  5