How do the characteristics of Betelgeuse and Rigel contrast in terms of their stellar ages?
Answer
Betelgeuse is orange-red (aging star), while Rigel is blue-white (young, hot star).
Rigel burns fiercely blue-white, signifying a young, extremely hot star, whereas Betelgeuse glows deep orange-red, which is the signature of an aging star nearing the end of its life cycle.
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