Geelong Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.81

Bortle class

Class 8 (Class 8)

Darkness Quotient

31%

Dataset

July 2026

City sky

Geelong: The Practical Verdict

Geelong, a mid-size city in Victoria, presents a challenging environment for stargazing due to its high light pollution. With a Bortle class 8 sky, stargazing quality is poor, erasing the Milky Way completely from view.

Under these conditions, practical observing is primarily limited to bright celestial objects such as the Moon, planets, and double stars. Narrowband imaging of the brightest nebulae is possible with care, but true deep-sky observing is not feasible due to the brightness of the urban sky.

For those seeking better conditions, travelling west to location 526, Victoria is recommended. Around 135 km away, this site offers a Bortle class 3 sky, providing a significant improvement in darkness, ideal for serious deep-sky observations.

At a Glance

Overall

Poor city sky - This is a poor city sky. The Milky Way is not visible and most deep-sky observing is unrealistic from the location itself.

Milky Way

Not visible - The Milky Way is erased by the bright urban sky background.

Best targets from here

Moon, planets, bright stars, double stars, solar system events, narrowband imaging only with care

Do not prioritise

visual deep-sky observing, broadband galaxies, reflection nebulae, widefield Milky Way

Best nearby upgrade

526, Victoria sits about 135 km west and reaches Bortle 3, roughly 12x darker.

Good dark window

Geelong'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 Geelong?

No. Geelong is a Bortle Class 8 sky with SQM 18.81, 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 Geelong?

Geelong is Bortle Class 8 (SQM 18.81), a poor city sky for astronomy.

Is Geelong good for stargazing?

Not for serious deep-sky observing. Geelong is a poor city sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.

Is Geelong good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Geelong and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Geelong without careful processing.

What can you observe from Geelong?

Primary targets from Geelong include Moon, planets, bright stars, double stars, solar system events. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.

Where are darker skies near Geelong?

The closest meaningfully darker mapped site is Connewarre, Victoria, about 12 km south east of Geelong, reaching Bortle 5.

When is the sky darkest in Geelong?

The sky over Geelong is darkest around June, July.

Is light pollution in Geelong getting better or worse?

There is not yet enough long-term data to give a confident trend for Geelong.

• Connewarre, Victoria

  Direction

  SE

  Distance (km)

  11.7

  SQM

  20.32

  Bortle

  5

• Drysdale, Victoria

  Direction

  ESE

  Distance (km)

  21.5

  SQM

  20.50

  Bortle

  5

• Anglesea, Victoria

  Direction

  SSW

  Distance (km)

  33

  SQM

  20.87

  Bortle

  4

• Red Hill South, Victoria

  Direction

  ESE

  Distance (km)

  59.9

  SQM

  20.91

  Bortle

  4

• Gold Hole Road, Victoria

  Direction

  WSW

  Distance (km)

  70.1

  SQM

  21.06

  Bortle

  4

• 526, Victoria

  Direction

  W

  Distance (km)

  135.4

  SQM

  21.52

  Bortle

  3