Macarthur Astronomical Society

Amateur Astronomers

Feet on the ground, eyes in the sky . . .

Astronomy in South Western Sydney,
New South Wales, Australia.

Macastro Gallery Pick

Dolpin Head Nebula

by Dave Manning

Click to enlarge!

See our Macastro Gallery for more stunning night sky photography from MAS members.

Pick List


What We Do

Dark sky observing sessions for members and beginners workshops.

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

Community stargazing nights at Campbelltown Rotary Observatory.

We collaborate with local institutions to broaden public understanding of the Universe.

Join MAS

Expand Your Universe

Curious about the Universe that we live in?
Then why not join MAS!

Observing Nights

Members Only

Our upcoming members only observing nights are listed on our Notice Board page.

Macarthur Astronomy Forum

Monthly Meetings with Guest Speakers.

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 we hope to open to the public.

See Notice Board for further details.

Macastro Articles

Telescopes, Amateur Astronomy & More

A collection of articles written by our members.
Visit here to read about practical astronomy or contribute a new article.

See Articles Page

Beginners Workshops

Learning To Use Your Telescope

A great opportunity to meet other members, find your way around the sky and learn how to get the most out of your telescope.

See Workshop page

Macastro Tours

Local and International

We organise tours for members to visit astronomical facilities.
Past tours have included observatories in NSW, Canberra, China, Peru and Chile. Tours are suspended during the pandemic.

See Tours Page

Patron of MAS

Professor Geraint Lewis

Cosmologist, Astrophysicist, Teacher, Author, Public Speaker

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.

Geraint’s Home page

Gallery Notices Public Beginners Articles Logon Join MAS