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  • 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

Patron:  Professor Geraint Lewis (University of Sydney)

MAS Logo 2009

macarthur astronomy forum logo transparent2


 We are amateur astronomers based in the Macarthur Region of South West Sydney, Australia.


We organise the monthly Macarthur Astronomy Forum and run observing sessions for members, for the public and for community organisations.



2018 12 03 Stargard Silhouette Small



Prime Focus Magazine

Download the latest copy!

PF may 2020


Members Astro-photography

Trifid Nebula M20

By Mark Sellars

 Image © Mark Sellars


Tarantula Nebula

By Roger Powell

 Image © Roger Powell


Running Chicken Nebula IC2948

By Dave Manning

Image © Dave Manning


Early Morning Comet - C/2020 F8 (SWAN)

By Tony Law

Image © Tony Law


 Please visit our News & Events page for activity details 


 MAS supports the mission of the Australian Dark Sky Alliance






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