Bathurst Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.58

Bortle class

Class 7 (Class 7)

Darkness Quotient

41%

Dataset

March 2026

Suburban/urban transition

Bathurst stargazing at a glance

Bathurst is a regional inland city in New South Wales, set on the Central Tablelands west of Sydney and known for its historic character and broad country surroundings.

With a Darkness Quotient of 41%, Bathurst sits right on the edge of the Moderate Light Pollution tier — noticeably darker than a major metropolitan centre, but still brighter than many smaller rural communities nearby. For practical observing from within the city, the most reliable targets are the Moon, planets, double stars and the brightest open clusters. Brighter showpiece deep-sky objects can be attempted, but faint galaxies and the subtler sweep of the Milky Way are strongly compromised by skyglow.

The encouraging part is that much darker skies are not far away in several directions. A really worthwhile step up appears roughly 15 kilometres from the city, and for a full dark-sky trip the nearest named site is about 115 kilometres to the east-north-east near Singleton Council, New South Wales.

The map shows Bathurst as a clear bright core with a strong halo spreading out into the surrounding landscape, so the city stands out distinctly from the darker countryside around it. The brightest area is concentrated over the urban centre, fading through red, yellow and green into blue before dropping away into darker grey and black zones.

What is striking is how quickly the glow thins beyond the city itself. Large darker regions appear to the west and north-west in particular, while most other directions also become markedly dimmer within a relatively short distance, though there are scattered smaller light domes from nearby settlements.

Compared with its surroundings, Bathurst is very much the main local source of skyglow rather than part of an unbroken urban corridor. That is good news for observers, because once you are outside the immediate light dome the map suggests a fairly rapid improvement in sky quality.

What the sky overhead is like

Looking straight up from Bathurst, the overhead sky is still noticeably affected by urban light, corresponding to a Bortle 7 zenith. The brighter constellations remain easy enough to pick out, but the background sky is luminous enough to wash away much of the finer texture between them.

For the casual observer, that means familiar patterns, bright stars and planets should still be obvious on clear nights. For the deep-sky observer, the loss is in contrast: dimmer clusters, galaxies and faint nebulae struggle because the sky never becomes properly black overhead.

This is the kind of sky where a short drive can make a surprisingly large difference. Once away from the central light dome, the view gains depth quite quickly.

• Near Coonamble Shire Council, New South Wales

  Direction

  WSW

  Distance (km)

  256.3

  SQM

  21.80

  Bortle

  2

  Milky Way, faint nebulae, deep-sky imaging

• Near Queanbeyan, New South Wales

  Direction

  S

  Distance (km)

  224.6

  SQM

  21.70

  Bortle

  3

  Milky Way visible, broadband DSO imaging

• Near Singleton Council, New South Wales

  Direction

  ENE

  Distance (km)

  112.5

  SQM

  21.43

  Bortle

  3

  Milky Way visible, broadband DSO imaging

Genuinely dark skies are quite accessible from Bathurst rather than requiring an all-night expedition. The nearest strong improvement arrives roughly 15 kilometres from the city in several directions, and the nearest named dark-sky destination is about 115 kilometres to the east-north-east near Singleton Council, New South Wales.

If you simply want a quick escape from the city glow, the countryside around Bathurst already offers a noticeable step up. Longer drives bring even darker conditions, with especially strong results shown farther to the south and west-south-west.

• Within 200 km

  Place

  Near Singleton Council, New South Wales

  Direction

  ENE

  Distance (km)

  112.5

  SQM

  21.43

  Bortle

  3

• Within 500 km

  Place

  Near Coonamble Shire Council, New South Wales

  Direction

  WSW

  Distance (km)

  256.3

  SQM

  21.80

  Bortle

  2

Long-term brightness trend

Bathurst's sky has become a little brighter over the long term, with SQM shifting from 19.87 in the earliest record to 19.58 in the latest one. That is a modest change rather than a dramatic deterioration, but it does point in the wrong direction for preserving faint-sky detail.

Across the full record, the mean reading is 19.71, with values ranging from 19.51 to 19.94. The year-by-year trend is gentle, so observers are still dealing with a fairly consistent urban-rural transition sky rather than a rapidly changing one.

In practical terms, that means Bathurst remains usable for bright-object observing from town, while darker nearby countryside continues to make the bigger difference for serious deep-sky sessions.

From within Bathurst, bright and compact targets are the most dependable: the Moon, planets, double stars and the brightest open clusters all cope reasonably well with the city's glow. A few showpiece deep-sky objects can still be worthwhile, especially brighter nebulae and the more prominent globulars, but they tend to lose contrast and subtle structure.

The real payoff comes once you leave the city lights behind. Under the darker countryside around Bathurst, the Milky Way, richer nebula fields, fainter galaxies and meteor activity become far more satisfying to observe.

• Moon
• planets
• double stars
• brightest open clusters

• bright nebulae such as M42
• the brightest globular clusters

• Milky Way
• faint galaxies
• broadband nebulae
• meteor showers