Keeping track of your epoch

Star and deep-sky catalogues are crucial resources for making sense of the night sky. There are a lot of them, though – so many, in fact, that you almost need a catalogue of catalogues to keep track o

Guiding is essential for deep-sky astrophotography, because even the most precise setups can introduce small tracking errors that affect your images. These are caused by a mix of mechanical flaws, imp

◀ Tuesday 2 The Lunar X and V clair-obscur effects can be seen on this evening’s Moon. Your best view will be around 23:41 BST (22:41 UT). Thursday 4 This morning, Titan’s shadow transits Saturn’s glo

Isn’t it amazing that astronomy – humanity’s oldest science – continues to generate such a delightful amount of new knowledge? Seeing as we’ve been studying the motion of the stars for a good long whi

1 Sep 00:00 AEST (31 Aug, 14:00 UT) 15 Sep 23:00 AEST (13:00 UT) 30 Sep 22:00 AEST (12:00 UT) The chart accurately matches the sky on the dates and times shown for Sydney, Australia. The sky is differ

Imagine an early human out on the savannah, stepping away from the evening fire, glancing up at the dark sky and being totally captivated by the tiny, twinkling sparks dotted everywhere. Eyes wide, he