The following describes objects in our night sky for September and is especially written for beginning observers. Astronomy from the city...

On the weekend of the 16-17 th August the Sydney City Skywatchers (SCS) ran their annual telescope viewing sessions for the public at...

The cover of the new Australian Astronomy Decadal Plan. Cover artwork: Seven Sisters, Noeleen Hamlett, Wajarri Yamaji ( Credit : science.org.au ). By Dirk Goës On the 9 th of July 2025 at the annual scientific meeting of the Astronomical Society of Australia (ASA) the Australian Academy of Science launched the Astronomy Decadal Plan 2026-2035. It was developed by Australia’s professional astronomers over the last two years through a series of workshops, roadshows and surv

The evolution of interacting binary stars

Stars that pull each other apart, merge, and explode A still from an animation simulating a thermonuclear explosion occurring on the surface of a white dwarf star (right) while still pulling in gas from its companion red giant star (left) in binary star system T Corona Borealis ( Credit : NASA's Goddard Space Flight Center Conceptual Image Lab). By Dirk Goës A binary star system is one where two stars are gravitationally bound together and orbit each other in either circu

Reports of the total lunar eclipse which occurred on 14 March 2025, as seen from eastern Australia.

130th anniversary of astronomy society highlights

Celebrating Australian women in astronomy on International Womens Day

Our active Sun in February 2025

Königsberg Observatory (left) where Friedrich Wilhelm Bessel made the first successful distance measurement to a star other than the Sun ( Credit : Wikipedia). The Gaia satellite (right) which has determined the distance to millions of stars to high degree of accuracy ( Credit : ESA/ATG medialab; background: ESO/S. Brunier). By Dirk Goës BSc(CompSc) UOW, MSc(Astronomy) Swinburne The observation phase of the European Space Agencies (ESA) groundbreaking Gaia mission ended on