Derby Stargazing & Astronomy Report
Light pollution and stargazing locations near Derby
- City
- Derby
- Country
- United Kingdom
- Latitude
- 52.9225
- Longitude
- -1.4746
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 18.30
- Bortle class
- Class 8 (Class 8)
- Darkness Quotient
- 26%
- Dataset
- March 2026
City sky
Stargazing in Derby
Derby is a compact cathedral city in the East Midlands of England, with a strong industrial heritage and a position close to some of the Midlands' most varied countryside.
The city generally experiences High Light Pollution, with a Darkness Quotient of 26% — making it brighter than the UK's better rural locations, though not quite as overwhelmed as the largest metropolitan centres.
In practical terms, the most realistic targets from within Derby are the Moon, planets, double stars and the brightest open clusters. A few showpiece deep-sky objects can still be attempted, but faint galaxies, nebulae and the Milky Way are largely washed out by the city glow.
Meaningfully darker skies do exist, but they are not right on the doorstep. The nearest reasonable improvement is around 30 kilometres to the north-west, near Staffordshire Moorlands, England, with darker conditions still available farther out to the east-north-east and west-south-west.
The map shows Derby sitting within a broad, bright urban patch, with intense pink-white cores surrounded by red, orange and yellow spill that spreads well beyond the city itself. This is the classic pattern of a built-up Midlands conurbation: a bright centre, many smaller surrounding light sources, and relatively little truly dark ground immediately adjacent.
The cleanest-looking areas on the map lie farther from the main urban belt, especially towards the west and east where the colours fade through green and blue into much darker grey-black zones. By contrast, the city and its neighbouring settlements form a fairly continuous luminous band, so Derby stands out as markedly brighter than its rural surroundings even though the wider region is also heavily settled.
What this means on the ground is that local horizons are affected by several overlapping light domes rather than a single isolated glow. To get a clear step up in sky quality, you need to push beyond the immediate urban halo into those darker outer regions visible on the map.
Looking straight up from Derby
Overhead, Derby's sky is bright enough that the view is dominated by the more conspicuous stars and familiar constellations rather than a richly textured star field. With a zenith reading of 18.3 SQM, the background sky remains noticeably illuminated, and the contrast needed for faint objects is limited.
That means the main patterns — Orion, the Plough, Cassiopeia, the Summer Triangle in season — should still be easy to pick out, but many of the subtler stars between them fade away. The Milky Way is not a realistic city-centre sight here, and even overhead deep-sky observing is largely confined to the brightest showcase objects.
north - marginal
About 15 kilometres north of Derby, the sky is still only marginal, at roughly Bortle 6. In this direction genuinely dark skies are not reached within the sampled area, so the northern horizon remains a compromised choice for serious deep-sky observing.
north-north-east - marginal
Around 15 kilometres to the north-north-east, conditions are marginal at about Bortle 6. The real improvement in this direction comes only much farther out, with genuinely dark skies appearing at around 200 kilometres.
north-east - poor
At roughly 15 kilometres north-east of the city, the sky is still poor, around Bortle 7. It does improve with distance, but genuinely dark conditions are only reached far away, at around 200 kilometres.
east-north-east - poor
Around 15 kilometres east-north-east, the sky remains poor at about Bortle 7, so local observing is still heavily affected by light pollution. This direction does become much more promising farther out, with genuinely dark skies reached at around 100 kilometres.
east - poor
About 15 kilometres due east of Derby, conditions are poor, around Bortle 7. There is a worthwhile improvement farther out, with good rural skies appearing sooner, but genuinely dark conditions are only reached at around 200 kilometres.
east-south-east - marginal
At around 15 kilometres east-south-east, the sky is marginal at about Bortle 6. It improves steadily in this direction, though genuinely dark skies only appear much farther out at around 200 kilometres.
south-east - poor
Around 15 kilometres south-east of Derby, the sky is poor, close to Bortle 8. It does improve farther out, but genuinely dark skies are not reached within the sampled area in this direction.
south-south-east - marginal
At roughly 15 kilometres south-south-east, conditions are marginal at about Bortle 6. There is some improvement with distance, but genuinely dark skies are not reached within the sampled area in this direction.
south - fair
About 15 kilometres south of the city, the sky is fair at around Bortle 5. This is one of the more usable directions for a modest improvement, although genuinely dark skies are not reached within the sampled area.
south-south-west - marginal
Around 15 kilometres south-south-west, conditions are marginal at about Bortle 6. The sky improves to decent rural quality farther out, but genuinely dark skies are not reached within the sampled area in this direction.
south-west - poor
At roughly 15 kilometres south-west of Derby, the sky is still poor, around Bortle 7. A much better step up arrives farther out, with genuinely dark skies reached at around 100 kilometres.
west-south-west - marginal
About 15 kilometres west-south-west, the sky is marginal at around Bortle 6. This direction becomes significantly better with distance, reaching genuinely dark skies at around 100 kilometres.
west - fair
Around 15 kilometres due west of Derby, conditions are fair at about Bortle 5. The west is one of the better nearby directions, and if you keep going, genuinely dark skies appear at around 200 kilometres.
west-north-west - fair
At roughly 15 kilometres west-north-west, the sky is fair, around Bortle 5. It improves quite well not far beyond that, with good rural conditions appearing sooner, though genuinely dark skies are only reached at around 200 kilometres.
north-west - fair
About 15 kilometres north-west of the city, the sky is fair at around Bortle 5. This is one of the stronger nearby directions, with good rural conditions not far beyond, while genuinely dark skies arrive only much farther out at around 200 kilometres.
north-north-west - fair
Around 15 kilometres north-north-west, conditions are fair at about Bortle 5. The improvement is gradual rather than dramatic nearby, with genuinely dark skies only reached at around 200 kilometres.
zenith - poor
Looking straight up from Derby, the zenith is poor, corresponding to about Bortle 8. The sky background is bright, so you can still make out the main constellation patterns, but many fainter stars are lost and the Milky Way is not realistically visible from within the city.
-
Near Powys, Wales
- Direction
- WSW
- Distance (km)
- 154.5
- SQM
- 21.37
- Bortle
- 3
Milky Way visible, broadband DSO imaging
-
Near West Lindsey, England
- Direction
- ENE
- Distance (km)
- 87.3
- SQM
- 21.06
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
-
Near Staffordshire Moorlands, England
- Direction
- NW
- Distance (km)
- 30.7
- SQM
- 20.86
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
Genuinely darker skies are available from Derby, but they require a deliberate drive rather than a quick hop to the edge of town.
The nearest Bortle 4 conditions are around 30 kilometres to the north-west, near Staffordshire Moorlands, England, while slightly darker skies can be found around 85 kilometres to the east-north-east near West Lindsey, England. For a more substantial jump again, the best nearby option is much farther away to the west-south-west near Powys, Wales.
-
Within 50 km
- Place
- Near Staffordshire Moorlands, England
- Direction
- NW
- Distance (km)
- 30.7
- SQM
- 20.86
- Bortle
- 4
-
Within 100 km
- Place
- Near West Lindsey, England
- Direction
- ENE
- Distance (km)
- 87.3
- SQM
- 21.06
- Bortle
- 4
-
Within 200 km
- Place
- Near Powys, Wales
- Direction
- WSW
- Distance (km)
- 154.5
- SQM
- 21.37
- Bortle
- 3
Long-term sky trend
Derby's night sky has been fairly stable over the long term, with a slight improvement in measured darkness rather than any dramatic change. The earliest reading in the series was 18.1 SQM, while the latest is 18.3 SQM.
Across 75 datasets, the mean sits at 18.34 SQM, with values ranging from 17.96 to 18.69 SQM. The overall trend is gently upward, suggesting that conditions have marginally improved over time, but only by a small amount that most casual observers would scarcely notice from one year to the next.
In practical terms, Derby remains a bright urban observing location. Any long-term gains have not been enough to shift it out of the strongly light-polluted category for everyday stargazing.
From within Derby, the safest bets are bright, high-contrast targets that can punch through a luminous background sky. The Moon and planets are largely unaffected, while double stars and the brightest open clusters can still be rewarding in small and medium telescopes.
A few showpiece deep-sky objects remain possible, especially under transparent winter skies, but they tend to look subdued rather than dramatic. Large faint nebulae, most galaxies and wide-field Milky Way observing are much better saved for a darker site outside the city.
If you can make the short trip towards better rural skies, Derby becomes a far more flexible base for observing. That is where deep-sky work, meteor watching and wide-field astrophotography start to feel much more worthwhile.
- Moon
- planets
- double stars
- brightest open clusters
- bright nebulae such as M42
- the brightest globular clusters
- Milky Way
- faint galaxies
- broadband nebulae
- meteor showers
Can you see stars from Derby?
Yes — you can still see plenty of the brighter stars and the main constellation patterns from Derby. What you lose are the fainter background stars that give the sky a richer, more crowded appearance.
Can you see the Milky Way from Derby?
For most observers within Derby itself, no: the Milky Way is largely washed out by the city's bright sky. You would need to travel out to darker rural areas for a realistic chance of seeing it well.
What Bortle class is Derby?
Derby is Bortle 8, which is a bright city sky. In practice that means the sky glow is strong and faint deep-sky objects are heavily affected.
What is the SQM in Derby?
Derby's measured sky brightness is 18.3 SQM. That is typical of a strongly light-polluted urban sky rather than a dark rural one.
Where are the nearest dark skies to Derby?
The nearest reasonable step up is around 30 kilometres to the north-west, near Staffordshire Moorlands, England, where conditions reach Bortle 4. Slightly farther away, near West Lindsey, England to the east-north-east, the sky is also good, while the darkest nearby site listed is near Powys, Wales to the west-south-west.
Is Derby good for astrophotography?
It can be good for lunar, planetary and narrow-field work on bright targets, but it is not ideal for faint deep-sky astrophotography from within the city. For wider-field nebula, galaxy or Milky Way imaging, a darker rural site will make a very noticeable difference.
How far do you need to drive from Derby for darker skies?
For a clearly better rural sky, you are looking at roughly 30 kilometres of travel to the north-west. For darker still conditions, the drive is longer — around 85 kilometres for a stronger improvement, or roughly 155 kilometres for the darkest nearby site in the data.