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red giant

/ˈrɛd ˈdʒaɪənt/

翻译: 红巨星是恒星演化晚期的一种恒星,表面温度较低,体积大幅膨胀,呈现红色。它是恒星耗尽核心氢燃料后进入的演化阶段。

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/ˈrɛd ˈdʒaɪənt/C1formalscientific
  • zh红巨星是恒星演化晚期的一种恒星,表面温度较低,体积大幅膨胀,呈现红色。它是恒星耗尽核心氢燃料后进入的演化阶段。

A large, luminous star in a late stage of stellar evolution, characterized by a cool surface temperature and a greatly expanded outer envelope.

  1. Late-stage starC1formal

    A large, cool, luminous star in a late stage of stellar evolution, characterized by a reddish appearance due to its low surface temperature.

    zh晚期恒星

    • Our Sun will eventually become a red giant in about 5 billion years.
    • Betelgeuse is a famous red giant star in the constellation Orion.
    • Red giants are much larger than main-sequence stars like the Sun.