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: July 2025

Wednesday, 2 July 2025 7:00 PM

We continue our discussion of Stellar Evolution with a complete overview of the lives of stars of various masses from birth within gaseous nebulae to their ultimate demise as a white dwarf or supernova explosion.


General Meeting: July 2025

Wednesday, 2 July 2025 8:00 PM

The Seestar S50 is an entry-level 'smart' telescope originally targeted at novice observers, but now with an enthusiastic group of experienced devotees who have realised that it is capable of much more than the original designers envisaged. In this talk we will hear about the basic capabilities of the Seestar and how, with a relatively simple workflow and some free third-party software, that it's possible to make extraordinarily accurate measurements of variable stars. The talk will be illustrated with material from Andrew's Masters research project, showing several light curves from eclipsing binaries, and Cepheid and SX Phe variables, and briefly discussing the mechanisms responsible for their variations in brightness.

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The Sky This Month

 

Latest Issue

Inside The Bulletin - July 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:

  • For the Juniors: Special Edition
    • Word-search and Objects to view
    • How to fill out an observation log
    • Light Pollution, Losing our Dark Starry Nights
    • How Kids can Protect the Night
  • Astronomical Acronyms
  • The Telescope Loan Program
  • Freezing Finger Photography
  • Seeing Double - Take 5
  • Astronomical Curiosities and Oddities
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.

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