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The Astronomical Society of South Australia connects people with astronomy through meetings, observing nights, education, the ASSA Bulletin and member programs.

Welcome to the Astronomical Society of South Australia

Astronomy in South Australia since 1892

Observe, learn and belong under South Australian skies

The Astronomical Society of South Australia helps people observe, understand, share and enjoy the wonders of the Universe.

You do not need to own a telescope to join, attend a meeting or take part in many Society activities.

Public Viewing Nights General Meetings Become a Member

2027 Council nominations are open

Help shape ASSA's future. Nominate for Council and contribute to the Society's activities, services and community.

Nominations close at midnight on Saturday 17 October 2026 (South Australian time).

Your nomination and a separate seconding submission must both reach the Secretary by the deadline.

View roles and nominate

Discovery announcement

Apparent satellite of (1757) Porvoo

Congratulations to Blair Lade, Andrew Wendelborn and Paul Martinaitis. Their 7 July occultation observations led to CBET 5742’s report of an apparent satellite of asteroid (1757) Porvoo.

Read the COMA story →
CBET 5742 light curves and sky-plane plot for asteroid 1757 Porvoo
Figure: CBET 5742.

Start with ASSA

What would you like to do?

Attend an event

Find General Meeting nights, public viewing nights, member observing sessions, camps and Society activities.

Events

Observe as a member

Members can attend observing nights at ASSA locations and take part in darker-sky observing and imaging activities.

Member Viewing

Travel to dark skies

ASSA multi-day camps give members several nights of observing, imaging and social time under darker regional skies.

Camps

Join a group

Special Interest Groups support members interested in astro-imaging, radio astronomy, comets, variable stars and more.

Groups
Visitors gathering at an ASSA observing event

New to astronomy?

Start with plain-language beginner material, practical observing advice and guidance for finding your way around the night sky.

Beginner Guide
Visitors looking through a telescope at an ASSA observing event

Come to a public viewing night

A relaxed way to see the Moon, planets, star clusters and other suitable objects through ASSA members' telescopes.

Viewing Nights
Stockport Observatory under a dark South Australian sky

Explore ASSA observing sites

ASSA has access to observatories, public viewing locations, member dark-sky sites and camp locations across South Australia.

Observe

Inside The Bulletin

The Bulletin is included with ASSA membership

Each month the Society publishes The Bulletin, a members' newsletter containing astronomical news, observing notes, society updates, feature articles and event information.

October 2026 issue highlights include:

  • Annual Dinner and Awards Night
  • Service and Astro-Imaging Awards Results
  • Judging Astrophotography
  • Southern Hemisphere Comets
  • Seeing Double - Take 5
  • For the Juniors: Saturn at Opposition
  • Astronomical Curiosities and Oddities: The Constant “c”
  • Members’ Gallery
Explore the Bulletin Join to receive The Bulletin
The Bulletin of the ASSA October 2026 cover, Razorback Trails by Will Godward

General Meetings and Astronomy Education

One evening, two reasons to attend

ASSA's monthly meeting night combines Astronomy Education and the General Meeting in one evening at The Braggs Lecture Theatre, University of Adelaide.

Meeting Details ASSA on YouTube
ASSA monthly astronomy presentation

Member Jungle App

Download the Member Jungle App

Easily access the latest club news, events and your membership details at your fingertips.

The app can also receive notifications and important reminders when ASSA updates the website with something new.

Find Out More
Visitors looking through a telescope at an ASSA observing event