Durham Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.55

Bortle class

Class 7 (Class 7)

Darkness Quotient

41%

Dataset

August 2026

Suburban/urban transition

Durham: The Practical Verdict

Durham is a small city in County Durham with a suburban setting. The level of light pollution here means the sky is classified as poor urban/suburban, making it less than ideal for serious stargazing. Light pollution mostly affects the view to the north-north-east, while the clearest views are towards the west.

While the Milky Way is not visible, observers can still enjoy the Moon, planets, bright double stars, and open clusters. For deep-sky enthusiasts, however, the area is quite limiting, with visual deep-sky observing and broadband galaxies largely out of reach. Narrowband imaging of bright nebulae can still be tackled with some care and processing.

For those seeking better skies, Brackenslack Cottage to the west-south-west offers a significant upgrade. It is about 70 km away and provides a substantial improvement under Bortle 4 conditions, ideal for more serious deep-sky observing.

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

Brackenslack Cottage sits about 68 km west south west and reaches Bortle 4, roughly 4.8x 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 19.55, 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 19.55), 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 Appersett, about 67 km south west of Durham, reaching Bortle 4.

When is the sky darkest in Durham?

The sky over Durham is darkest around January, December. Significant summer limitation: around 88 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

  20.24

  Bortle

  6

• Brackenslack Cottage

  Direction

  WSW

  Distance (km)

  68.2

  SQM

  21.25

  Bortle

  4

• South Pelaw

  Direction

  ENE

  Distance (km)

  6.6

  SQM

  20.01

  Bortle

  6

• Appersett

  Direction

  SW

  Distance (km)

  67.3

  SQM

  20.95

  Bortle

  4

• Ecclefechan

  Direction

  WNW

  Distance (km)

  113.3

  SQM

  21.24

  Bortle

  4

• Alwinton

  Direction

  NNW

  Distance (km)

  83.7

  SQM

  20.76

  Bortle

  5