n the brightest star in the constellation Scorpius. It is a variable binary star whose main component, a red supergiant, is associated with a fainter green component. Visual magnitude: 1.2 (red), 6.8 (green); spectral type: MO (red); distance: 250 light years
(from Greek Antares, literally: simulating Mars (in colour), from anti- + Ares Mars)
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