It operates the Green Point Observatory, it is one of the two founding organizations of the National Australian Convention of Amateur Astronomers, and its members have discovered two comets and two novae.

Other meetings are less formal, with members holding discussions among themselves, exchanging techniques, tips and experiences, capturing and processing images, or just observing through the society's telescopes which are kept on site.

[3] They conduct a number of public outreach events, including: To assist with these activities, the society is authorized by the police to use high-powered lasers for astronomical purposes.

The Society obtained Council land at Oyster Bay and commenced construction on the Green Point Observatory, the first stage of which, consisting of a dome and library, was completed in 1969.

When the Astronomy celebrated its fiftieth anniversary in 2011, the famous astronomer Fred Watson addressed their commemorative dinner, which was also covered by the press.