Description: 光谱类型为“F”的恒星。天文学家通过光谱中存在的中等强度的电离钙线和其他一些原子金属线以及微弱的氢吸收线来识别 F 型恒星。它们的典型（有效）温度大约在6000开尔文（K）到7400开尔文之间。与其他恒星相比，它们在人眼中呈现白色或黄白色，除非受到星际或大气的影响导致发红。北极星就是 F 型星的一个例子。

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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