False-colour computerised image of Betelgeuse star

False-colour computerised image of Betelgeuse star

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Caption: Computer-enhanced, false-colour image showing the halo of gas around the red supergiant star Betelgeuse. Betelgeuse is a massive, variable star, which lies about 650 light years from Earth in the constellation of Orion. It has one of the largest diameters known & is 17,000 times brighter than the Sun. It has a turbulent, convective atmosphere, a strong stellar wind, & a variable diameter. It will probably end its life in a supernova explosion. Its name is a contraction of an Arabic phrase meaning "armpit of the central one", referring to the armpit of Orion.

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Keywords: alpha orionis, astronomy, betelgeuse, cosmology, false-coloured, red supergiant, science, star, stellar, stellar wind, supergiant star, variable star

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