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单词
k star
释义
WordReference Random House Unabridged Dictionary of American English © 2024
K star,
[
Astron.
]
Astronomy
a relatively cool, orange-to-red star, as Aldebaran or Arcturus, having a surface temperature between 3500 and 5000 K and an absorption spectrum with strong lines of calcium and many neutral metals. Cf.
spectral type.
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更新时间:2025/7/31 21:37:27