Gladstone Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.03

Bortle class

Class 7 (Class 7)

Darkness Quotient

33%

Dataset

August 2026

Suburban/urban transition

Gladstone: The Practical Verdict

Gladstone, a small city in Queensland, experiences high light pollution, severely impacting astronomical observations. Under such conditions, the sky is best classified as a poor urban/suburban sky, providing limited opportunities for deep-sky astronomy. The primary challenge here is the absence of the Milky Way, which is not visible due to the prevalent light pollution.

Observational targets in Gladstone are restricted mainly to brighter celestial objects, such as the Moon, planets, bright double stars, and open clusters. Attempting narrowband imaging may offer some success, though it requires careful processing. Visual deep-sky observing and broadband galaxy imaging remain challenging and generally impractical.

For those seeking better conditions, Eurimbula, located about 55 km east-south-east, offers a significant improvement in sky quality with its Bortle 2 classification. This makes it a worthwhile destination for more serious astronomical pursuits.

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

Eurimbula, Queensland sits about 57 km east south east and reaches Bortle 2, roughly 12x darker.

Good dark window

Gladstone's longest dark windows fall in June and July, with the shortest nights around December and January. For deep-sky imaging, winter gives the best combination of long nights and true astronomical darkness.

Frequently Asked Questions

Can you see the Milky Way from Gladstone?

No. Gladstone is a Bortle Class 7 sky with SQM 19.03, 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 Gladstone?

Gladstone is Bortle Class 7 (SQM 19.03), a poor urban/suburban sky for astronomy.

Is Gladstone good for stargazing?

Not for serious deep-sky observing. Gladstone 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 Gladstone good for astrophotography?

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

What can you observe from Gladstone?

Primary targets from Gladstone 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 Gladstone?

The closest meaningfully darker mapped site is Gladstone, Queensland, about 10 km east north east of Gladstone, reaching Bortle 4.

When is the sky darkest in Gladstone?

The sky over Gladstone is darkest around June, July.

Is light pollution in Gladstone getting better or worse?

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

• Gladstone, Queensland

  Direction

  ENE

  Distance (km)

  10

  SQM

  20.82

  Bortle

  4

• Curtis Island, Queensland

  Direction

  WNW

  Distance (km)

  23.1

  SQM

  20.92

  Bortle

  4

• Eurimbula, Queensland

  Direction

  ESE

  Distance (km)

  56.9

  SQM

  21.75

  Bortle

  2

• Shoalwater, Queensland

  Direction

  NNW

  Distance (km)

  149.4

  SQM

  21.86

  Bortle

  2

• Avondale, Queensland

  Direction

  SE

  Distance (km)

  133.6

  SQM

  21.23

  Bortle

  4