Description: 光谱类型为 ”K“ 的恒星。天文学家通过光谱中氢原子谱线非常弱但铁和锰原子谱线较强来识别 K 型星。它们的典型（有效）温度大约在 3700 K 到 5200 K 之间。与其他恒星相比，它们在人眼中呈现橙白色，除非受到星际或大气层红化的影响。金牛座的毕宿五（即阿尔德巴朗）和双子座的北河三（即波鲁克斯）就是 K 型星。

Related Terms:

• 光谱类型
• 恒星
• 红化
• 有效温度
• 光谱线

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

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