Light pollution is the fastest growing form of pollution in the world, but also the easiest to solve!

Dirk Goës, SCS Committee member, presented this short talk on Monday 1st June 2026. It is based on his article of the same name, which can be read here. The GALAH Survey: Searching for the Universe's missing lithium.

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.

A long time ago in a galaxy not at all far away…

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

Click here to see our full program for 2026.

Photo by Ann Cairns This wonderful photo of the Moon about to occult Saturn was taken by SCS committee member Ann Cairns. Ann took the photo on the eastern grassy area of Sydney Observatory using a mobile phone camera held up to the eyepiece of a 4” (10 cm) Skywatcher refractor telescope in 2018. The photo demonstrates that getting started in astrophotography can be as simple as holding your smart phone up to a telescope eyepiece. The photo is also a good follow up to Dr A

When will T Corona Borealis go nova? The Blaze Star, corrected for the southern hemisphere! (Credit: Adapted from The Farmers’ Almanac ). By Dirk Goës The Blaze Star, whose scientific name is T Corona Borealis (T CrB), is a star which experiences a thermonuclear explosion on its surface about every 80 years. The last explosion occurred in 1946 and according to observations and measurements made by astronomers in the last few years it is set to explode any day now. This kind