Getting a good truss system together is hard. The carbon fibre rods have to be held rigidly, but they also have to be able to change the angle they’re sitting at. These truss blocks and ball joints do all that.
Astroworx
The first Astroworx telescope is now on the website
Most of you already know that Sidereal Trading is the home of Astroworx, the only telescope factory in Australia. Over the past few years, we’ve been making Newtonian astrographs, developing…
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Sky-Watcher HAC150 – a budget deep-sky fast astrograph
A quick look at the new Sky-Watcher Honders Advanced Catadioptric Astrograph, a 125mm f/2 catadioptric “camera-only” telescope. Is this baby RASA the new grab-n-go sensation?
Using Lunt Telescopes to look at the Sun
With the Australian Solar eclipse coming in 2028, it’s time to get familiar with solar telescopes. With Lunt telescopes you can see the surface of the Sun using white light, or Hydrogen alpha and Calcium-K filters. These all show different aspects of what’s happening there. If you want to photograph it as well, there are cameras for that too.
Mars Opposition 2025: what is Retrograde Motion – and what does it mean?
Mars opposition is in mid-January next year. But before that happens, Mars is going to enter retrograde motion, where it stops being overtaken by the background stars and starts overtaking them back. Retrograde motion stumped the ancient astronomers and had a hand in stimulating the rise of modern scientific thought.