Hull Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.81

Bortle class

Class 8 (Class 8)

Darkness Quotient

31%

Dataset

March 2026

City sky

Hull: The Practical Verdict

Hull is a historic port city in the East Riding of Yorkshire on England’s north-east coast, shaped by its estuary setting and long maritime character.

The city generally experiences High Light Pollution, with a Darkness Quotient of 31% — making it brighter than smaller rural centres, though not quite as overwhelmed as the very brightest major urban cores.

In practical terms, the most reliable targets from within the city are the Moon, planets, double stars and the brightest open clusters. A few showpiece deep-sky objects, such as the Orion Nebula and the brightest globular clusters, can still be attempted, but faint galaxies and the Milky Way are largely washed out by the urban skyglow.

Hull is actually quite well placed for a quick escape to darker skies. A reasonable step up appears only about 15 kilometres to the north-east, near Near East Riding of Yorkshire, England, while markedly darker conditions are available at roughly 50 kilometres to the north-west near Near North Yorkshire, England.

The map shows Hull and its immediate urban area as a concentrated bright patch of yellow, orange and pink-white, indicating a strong core of artificial skyglow with several surrounding hotspots. The brightness spreads unevenly across the built-up area, suggesting multiple clusters of intense lighting rather than a single compact dome.

The most obvious relief appears away from the city towards the east and north-east, where the colours fall away quickly through blue into very dark grey and black. That pattern suggests the open water and less built-up surroundings in those directions help the sky darken faster than over the more continuously lit land to the south and west.

To the west, south-west and south, the map keeps more lingering glow and scattered bright nodes, so the urban influence remains broader and more persistent there. Overall, Hull stands out clearly against its surroundings, but it also benefits from having noticeably darker territory relatively close by in some directions.

What the all-sky view suggests

Looking straight up from Hull, the sky is bright enough that contrast is the main limiting factor rather than the altitude of the target alone. The zenith sits in Bortle 8 territory, so familiar constellations remain visible, but their fainter outlying stars are thinned out and the background sky never becomes properly dark.

In a city sky like this, the brightest stars and major seasonal patterns still stand out well enough for casual stargazing and basic telescope alignment. What tends to disappear are the subtler star fields between them, along with any broad, low-contrast features such as the Milky Way.

The practical takeaway is simple: overhead is always better than near the horizon, but even at the zenith Hull’s skyglow places clear limits on deep-sky observing. For faint nebulae and galaxies, a short trip out of the city will help far more than waiting for them to climb higher.

• Near North Yorkshire, England

  Direction

  NW

  Distance (km)

  50.3

  SQM

  21.33

  Bortle

  3

  Milky Way visible, broadband DSO imaging

• Near East Riding of Yorkshire, England

  Direction

  NE

  Distance (km)

  15

  SQM

  20.96

  Bortle

  4

  Bright nebulae, galaxies, narrowband imaging

• Near East Riding of Yorkshire, England

  Direction

  ESE

  Distance (km)

  21.5

  SQM

  20.91

  Bortle

  4

  Bright nebulae, galaxies, narrowband imaging

Historical Light Pollution Trends

Hull’s long-term record is notably steady. The earliest and latest readings are both 18.81 SQM, which points to little overall change in the city-centre night sky across the available series.

There is some variation within the record, with readings ranging from 18.07 to 19.12 SQM and a long-term mean of 18.74 SQM. The fitted trend is slightly positive at around 0.0188 SQM per year, hinting at a very modest darkening over time, but in practical visual terms Hull remains firmly a bright urban observing location.

With 75 datasets in the series, this looks more like a broadly stable light-pollution picture than a city undergoing dramatic change. For regular observers, that means expectations from year to year are likely to stay fairly consistent unless local lighting changes significantly.