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Astronomers Image the Surface and Atmosphere of the Red Supergiant Star Antares

08/25/2017 08:11PM

Astronomers Image the Surface and Atmosphere of the Red Supergiant Star Antares

To the unaided eye the famous bright star Antares shines with a strong red tint in the heart of the constellation Scorpius. It is a huge and comparatively cool red supergiant in the late stages of its life, on the way to becoming a supernova. A team of astronomers, led by Keiichi Ohnaka, of the Universidad Catolica del Norte in Chile, used ESO's Very Large Telescope Interferometer (VLTI) at the Paranal Observatory in Chile to map Antares' surface and to measure the motions of the surface material. This is the best image of the surface and atmosphere of any star other than the Sun.


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