Peter Osman, Elizabeth Budek, Elizabeth Cocking and Toner Stevenson at Waverley STEMFEST, 22 May 2026. Sunday 24 May, Sydney City Skywatchers volunteered at Waverley Public School's STEMFEST. Elizabeth Cocking was prime organiser and, with Peter Osman, Elizabeth Budek and myself, we had a very busy time as over 3,500 people, mostly primary school children with their parents, attended. We were in good company with the University of New South Wales 'Future Now' team and WIRES

Photograph: Mike Chapman (centre) at a celebration for the BAA NSW Branch of the BAA centennial celebration in 1995. Left: Madeleine and Nick Lomb, Right Janette Brenan and Joe Kelly. Photograph courtesy Nick Lomb. This on-line library is named in memory of Michael Benedict Chapman, past president of Sydney City Skywatchers. Sydney City Skywatchers was previously called the New South Wales Branch of the British Astronomical Association (BAA NSW). Our members have, for more th

The amount of lithium in the universe has changed since the Big Bang, can we measure the original amount?

A recap of the May 2026 meeting at Sydney Observatory.

This summary of our April astronomy meeting is a great recap of perfect for those who could not attend.

How to see 3 planets and the waning Moon

Reports from the 3 March total lunar eclipse seen from Sydney.

Vale Michael Chapman, amateur astronomer and dark sky advocate

By Dirk Goës The March 2026 meeting was our first online Zoom meeting for the year. We welcomed all existing and new members and acknowledged First Nations peoples. 26 people attended the meeting including 24 members and two visitors. SCS President Dr Toner Stevenson gave an overview of the results of our member survey. The survey found that our members enjoy a mix of learning about amateur astronomy techniques as well as learning about what professional astronomers are

Observing the Sun with the Skywatcher’s solar telescope