• abana

  • abana

  • abana

  • abana

  • abana

  • welcome to

    macarthur astronomical society

  • observe

    Astronomers use scientific observation to learn about the Universe we live in. It's a beautiful place and, as a group of keen amateur astronomers, M.A.S. members have it as their common interest. We observe from two southern Sydney locations.

  • photograph

    Along with our "visual" observers, we have a group of dedicated astrophotographers within our ranks. This group find that photographing deep sky objects with high-quality cameras brings out the colour which your own eyes are unable to detect. See our photographs and you'll want to take your own.

  • educate

    Come to a Macarthur Astronomy Forum evening, held at UWS Campbelltown, to hear talks given by Australian and international professional astronomers as well as from amateurs with interests in their own specific fields. Entry is free for all.

  • events

    M.A.S. members are deeply committed to sharing our combined knowledge of, and love for, the night sky and the science of astronomy. We hold public open nights during the year - keep watching out for "What's On".

Macarthur Astronomical Society

G'day From New South Wales, Australia

We are amateur astronomers based in the South Western region of Sydney.


Our Patron is astrophysicist Professor Bryan Gaensler - 1999 Young Australian of the Year - currently Director of the Dunlap Institute for Astronomy and Astrophysics at The University of Toronto, Canada.

We conduct the monthly Macarthur Astronomy Forum at the Campbelltown Campus of Western Sydney University.

We hold public astronomy nights in collaboration with Campbelltown Rotary Observatory at Western Sydney University and dark sky observing sessions for our members.


Macarthur Astronomy Forum

Third Monday of the Month


 Prof. Andrew Hopkins


 Monday 19th June

7.30 pm


Public admission is free. Please visit our Meetings and Events page  for full details.


Public Night

Live Stargazing

Public Observing at Western Sydney University

Saturday 3rd June

Campbelltown Rotary Observatory: from 5.30 pm

Click here for full details


MAS Image of the Week

NGC 6744 by Tony Law

Image© Tony Law, Macarthur Astronomical Society

 Don't forget our next Live Stargazing event, right here in Campbelltown on Saturday 3rd June.






The Guinness World Record for the 'Highest Number of Stargazers Across Multiple Sites At One Time' is held by MAS jointly with ANU and 35 other sites across Australia.

Subscribe to our newsletter:

...for periodic reminders on up-coming events and news at MAS