Gladstone Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.06

Bortle class

Class 7 (Class 7)

Darkness Quotient

34%

Dataset

May 2026

Suburban/urban transition

Gladstone: The Practical Verdict

Gladstone, situated in Queensland, Australia, is a relatively small city with moderate light pollution. The overall quality of the sky here is poor for serious astronomical pursuits. Unfortunately, the urban light makes it difficult to truly enjoy deep-sky observations, and the Milky Way is not visible.

From this location, the best observational targets tend to be the Moon, planets, bright double stars, and open clusters. For astrophotography enthusiasts, narrowband imaging of bright emission nebulae is possible, although it demands careful processing due to the light conditions. Visual deep-sky observing and broadband galaxy photography should be avoided.

For those eager to experience better stargazing conditions, Eurimbula, Queensland, offers a significant upgrade. Located about 55 km to the east south-east, Eurimbula provides a much darker sky – perfect for deep-sky observers willing to make the drive.

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 19.06, 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 19.06), 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 Harbour, 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 Harbour, Queensland

  Direction

  ENE

  Distance (km)

  10

  SQM

  20.81

  Bortle

  4

• Curtis Island, Queensland

  Direction

  SE

  Distance (km)

  19.6

  SQM

  20.96

  Bortle

  4

• Eurimbula, Queensland

  Direction

  ESE

  Distance (km)

  56.9

  SQM

  21.75

  Bortle

  2

• Shoalwater, Queensland

  Direction

  NNW

  Distance (km)

  145.5

  SQM

  21.81

  Bortle

  2