Macarthur Astronomical Society

Amateur Astronomers

Feet on the ground, eyes in the sky…

Based in the South Western Region of Sydney, NSW, Australia, including Campbelltown, Camden, Liverpool and Wollondilly.

Gallery Pick

Tarantula Nebula & the Large Magellanic Cloud

Dave Manning

See our Members Gallery for more great night sky photography.

List of Gallery Picks


What We Do

We hold dark sky observing sessions for our members.

We organise the Macarthur Astronomy Forum, bringing local and international professional astronomers to address us on their research.

We organise community astronomy nights at Campbelltown Rotary Observatory at Western Sydney University and we collaborate with local institutions to broaden public understanding of the Universe.

Monthly Meetings with Guest Speakers

Online for Members.

During the pandemic our meetings are held online for members only. Logging in is simple and easy.

When we return to “normal” our meetings will again be held at Western Sydney University (Campbelltown) and be open to the public.

See News & Events Page for further details.

December Guest Speaker – Patron of MAS

Professor Geraint Lewis

Cosmologist, Astrophysicist, Teacher, Author, Public Speaker
Sydney Univerity

Monday 6th December

Professor of Astrophysics at the Sydney Institute for Astronomy, part of the University of Sydney’s School of Physics and a regular guest speaker at MAS.

Home page

Expand Your Universe

Join MAS

You can find out more about MAS > HERE < . Our members are very active and friendly, so if you are curious about the Universe that we live in and would like to join MAS, you will be very welcome.