Colour a clue to our Cross

By Leigh Tschirpig
Updated July 14 2017 - 3:35pm, first published 3:27pm

This month, as an introduction to newcomers, let’s look at a famous group of stars, the Southern Cross, as well as a neighbouring star and see what we can find out about them by examining their colours. Like a gas burner on high, stars that are hotter burn with a white or bluish light.  

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