What type of star is Betelgeuse, which marks Orion's shoulder?
Answer
A reddish supergiant
Betelgeuse is one of the defining stars that outlines the shape of Orion, specifically marking one of the hunter's shoulders. Its spectral characteristics are well-known; it is classified as a reddish supergiant star. This designation indicates a massive star that has exhausted the hydrogen in its core and expanded significantly, giving it a distinct orange-red hue visible to the naked eye, contrasting sharply with the blue light emitted by Rigel.

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Bright Stars of Orion - Betelgeuse, Rigel, Bellatrix, Belt Stars
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