Daily cosmobite: the colour of stars

22_Orion with Betelgeuse labelled_Nick LombWe see most stars as white because our eyes are poor at seeing colour in the dark. Colour is only obvious to the naked eye for a few of the brighter reddish stars like Betelgeuse in Orion. Photographs reveal a greater range of colours for stars including ones that are blue-white, white, yellow and red.

The constellation of Orion with the star Betelgeuse labelled. Photo Nick Lomb

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