Which stellar type does Edward Guinan call the true "Goldilocks stars"?
Answer
K dwarfs (orange dwarfs).
Edward Guinan specifically refers to K-dwarfs, or orange dwarfs, as the true "Goldilocks stars." This designation stems from the ideal balance these stars strike when compared to the two extremes of stellar types relevant to habitability. They avoid the relatively short lifespans and potential for high energy output seen in hotter G-stars, while also being significantly more stable and less prone to sterilizing outbursts than the more numerous but volatile M-dwarfs. Their combination of longevity and moderate radiation output makes them highly favored targets.
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