Description: 光譜類型為"G"的恆星。天文學家通過識別電離鈣的強吸收線來確定G型恆星；更廣泛地說，G型恆星中的金屬吸收線比更熱的恆星（如F型恆星）更強，而比更冷的恆星（如K型恆星）更弱。G型恆星的典型（有效）溫度在5200開爾文（K）到6000 K之間。與其他恆星相比，它們對人類肉眼呈現出黃色，除非存在顯著的星際或大氣層紅化現象。處於主序階段的G型恆星，即通過核聚變在核心區域將氫轉化為氦的恆星，被稱為黃矮星。太陽就是一個典型的G型黃矮星例子。

Related Terms:

• 光譜類型
• 恆星
• Sun
• 紅化
• 有效溫度
• 吸收線

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

This is an automated transliteration of the simplified Chinese translation of this term

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