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red giant star

/ˈrɛd ˈdʒaɪənt stɑːr/

翻译: 红巨星是恒星演化晚期的一种大型发光恒星,表面温度较低,外层大气极度膨胀,常用于天文学中描述像太阳这类恒星生命周期的阶段。

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phrase

/ˈrɛd ˈdʒaɪənt stɑːr/C1formalscientific
  • zh红巨星是恒星演化晚期的一种大型发光恒星,表面温度较低,外层大气极度膨胀,常用于天文学中描述像太阳这类恒星生命周期的阶段。

A large, luminous star in a late stage of stellar evolution, characterized by a cool surface temperature and a greatly expanded outer envelope, often used in astronomy to describe a phase in the life cycle of stars like the Sun.

  1. Late-stage starC1formal

    A large, cool, luminous star in the final stages of its life cycle, characterized by a reddish appearance due to its low surface temperature.

    zh晚期恒星

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