Welcome to the Astronomical Society of South Australia

The Astronomical Society of South Australia was founded in 1892 and is one of the largest organisations of its kind in Australia with over 750 members. Our mission is to observe, understand, share and to enjoy the wonders of the Universe. Most importantly, we promote Astronomy to the public to inspire and enrich the astronomer in everyone. Membership is open to anyone with an interest in Astronomy. You do not need to own a telescope. The Society is also the only representative body for amateur astronomers in the state of South Australia.

Our monthly General Meeting is held at The Braggs Lecture Theatre at the University of Adelaide at 8pm on the first Wednesday of each month, excluding January.

The General Meeting is preceeded at 7pm by an Astronomy Education session for those looking for an introduction to Astronomy and our Universe.

The main General Meeting features a presentation from a professional astronomer or guest speaker with a wide range of topics aligned with Astronomy, Space, Science and Physics.

These sessions are open to the public and free for all to attend. No ticket required.


Astronomy Education: September 2025

Wednesday, 3 September 2025 7:00 PM

Exploring such objects as Cepheid variables, long period variables like Mira, eclipsing binaries and cataclysmic variables like Eta Carina.


General Meeting: September 2025

Wednesday, 3 September 2025 8:00 PM

Did you know that black holes can photobomb stars? Hear about how we’ve more than doubled the known number of radio stars using Australia’s ASKAP telescope. Stars might seem easy to find, but it’s a lot trickier with black holes everywhere. I'll talk about the amazing radio telescopes here in Australia and the different kinds of radio astronomy. I'll also share my latest work searching for (and finding!) radio stars and the impact radio stars have on the planets orbiting them. Video didn't kill the radio star, but the radio star might kill the habitable planet!


2025 Annual Dinner & Awards Night

Saturday, 6 September 2025 7:00 PM

The 2025 Annual Dinner and Awards Night is one of the highlights of the year and is always a wonderful and entertaining night. This year's event will be held at the Glenelg Golf Club on 6th September. Tickets are $80 per person. Book at: https://assa.org.au/dinner

Our Sponsors

 

Watch some of our recent events on our YouTube channel

The Sky This Month

 

Latest Issue

Inside The Bulletin - August 2025

Each month the Society publishes The Bulletin — a 16 page newsletter for members, containing information on astronomical news and events.

This month's issue includes:

In this issue:

  • Discovery of a Double Star in Hydra
    • by ASSA COMA SIG Observers
  • ASSA Council update
  • Star Gazing Etiquette
  • A Rare Interstellar Visitor

 

Read now

Membership

Membership is open to people of all ages and professions — the only pre-requisite is an interest in Astronomy. It does not matter how much you know about Astronomy or any other science. The Society has something for you. Our members come from all walks of life. What they share is the enjoyment the night sky has to offer.

Join Today