Shrewsbury Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.65

Bortle class

Class 6 (Class 6)

Darkness Quotient

42%

Dataset

April 2026

Bright suburban sky

Shrewsbury: The Practical Verdict

Shrewsbury, a small city in Shropshire, offers suburban skies shaped by moderate light pollution. The sky here limits deep-sky observations substantially, with the Milky Way completely obscured.

Observers can comfortably target the Moon, planets, and double stars, alongside brighter open clusters and emission nebulae with filtration. Narrowband imaging of brighter nebula cores is feasible, though broadband imaging suffers from high sky background. Reflection nebulae and faint galaxies are best avoided.

Llanerfyl, about 50 km west, provides Bortle 3 conditions and notably darker skies. This site is an excellent choice for serious deep-sky work, significantly improving access to fainter targets.

At a Glance

Overall

Limited suburban sky - This is a limited sky for astronomy. The brightest targets remain accessible, but faint deep-sky observing is heavily compromised.

Milky Way

Not visible - The sky background is generally too bright for a reliable Milky Way view.

Best targets from here

Moon, planets, double stars, bright open clusters, narrowband imaging, bright nebula cores

Do not prioritise

broadband galaxies, reflection nebulae, visual faint nebulae, Milky Way photography

Best nearby upgrade

Llanerfyl sits about 48 km west and reaches Bortle 3, roughly 5.9x darker.

Moderate dark window

Shrewsbury's limiting factor is not only light pollution. Around midsummer, Shrewsbury 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 Shrewsbury?

No. Shrewsbury is a Bortle Class 6 sky with SQM 19.65, 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 Shrewsbury?

Shrewsbury is Bortle Class 6 (SQM 19.65), a limited suburban sky for astronomy.

Is Shrewsbury good for stargazing?

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

Is Shrewsbury good for astrophotography?

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

What can you observe from Shrewsbury?

Primary targets from Shrewsbury include Moon, planets, double stars, bright open clusters, narrowband imaging. Targets such as broadband galaxies, reflection nebulae, visual faint nebulae are not realistic from this sky.

Where are darker skies near Shrewsbury?

The closest meaningfully darker mapped site is Llantysilio, about 42 km north west of Shrewsbury, reaching Bortle 4.

When is the sky darkest in Shrewsbury?

The sky over Shrewsbury is darkest around January, December. Significant summer limitation: around 71 nights per year have no true astronomical darkness.

Is light pollution in Shrewsbury getting better or worse?

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

• Llanerfyl

  Direction

  W

  Distance (km)

  47.5

  SQM

  21.57

  Bortle

  3

• Llangywer

  Direction

  WNW

  Distance (km)

  60.6

  SQM

  21.55

  Bortle

  3

• Llantysilio

  Direction

  NW

  Distance (km)

  42

  SQM

  20.85

  Bortle

  4

• Bradley

  Direction

  E

  Distance (km)

  32.1

  SQM

  20.61

  Bortle

  5

• Rhayader

  Direction

  SW

  Distance (km)

  78.9

  SQM

  21.55

  Bortle

  3

• Clyro

  Direction

  SSW

  Distance (km)

  69.5

  SQM

  21.06

  Bortle

  4