Welcome to the Astronomical Society of South Australia

The Astronomical Society of South Australia is the only representative body for amateur astronomy in the state of South Australia. Founded in 1892 and with around 600 members, it is the oldest and one of the largest organisations of its kind in Australia.

Our monthly meetings, which usually feature a guest speaker, are free, open to the public and visitors are most welcome to attend.

Variable Stars Astronomy Education

Wednesday, 3 October 2018 7:00 PM

As a conclusion to the series on Stellar Evolution, we will take a look at Variable Stars. This will include exploring such objects as cepheid variables, long period variables like Mira, eclipsing binaries and cataclysmic variables like Eta Carina.

Astronomical Anniversaries 2018 General Meeting

Wednesday, 3 October 2018 8:00 PM

From the detection of stellar parallax by Bessel, to the questionable patenting of the newly invented telescope, from Mirzam varying slightly to the whopping massive blast over Tunguska, from a Phoenix landing on a Martian polar cap to Apollo 8’s capture of Earthrise; 2018 boasts some remarkable astronomical anniversaries. Come along and Steven Raine will discuss some of these significant places, people and history commemorating their decadal anniversaries this year showing how we've progressed and learnt through the ages and through some remarkable work by some fascinating people and some of the sights we've seen over centuries.

Galaxies Astronomy Education

Wednesday, 7 November 2018 7:00 PM

After exploring our own galaxy, The Milky Way, we will look at the Local Group of Galaxies and beyond. The various types of galaxies will be discussed and how they are classified using Hubble’s Tuning Fork diagram.

Solar System Planetary Interiors General Meeting

Wednesday, 7 November 2018 8:00 PM

In this talk Prof Caprarelli will discuss the planets of our solar system using a comparative planetology approach. Through the exploration of key concepts of planetary geophysics and cosmochemistry, she will present an analysis of the differences among the planets of our solar system, with Earth as the planet of reference.

Public Star Nights

Experience the night sky through our telescopes at public viewing nights.

Thursday 4 October
Friday 12 October
Friday 19 October
Thursday 8 November
Friday 9 November
Friday 16 November
Saturday 17 November

Members' Diary

September 2018
September 6, 2018
September 7, 2018
September 14, 2018
September 28, 2018

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Latest Issue

Inside The Bulletin

Each month the Society publishes The Bulletin - a 16 to 20 page newsletter for members, containing information on astronomical news and events.

This month's issue includes:

Red Moon Horizon by Paul Curnow

Equipment Review by Paul Montague

Members images from the ASSA Astro-photography Awards

Southern Hemisphere Comets by Michael Mattiazzo


Read now


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