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sidereal year

/saɪˈdɪəriəl jɪər/

翻译: 地球相对于遥远恒星完成绕太阳一周公转所需的时间,约为365.256天。用于天文学中测量天体运动。

1 个条目

phrase

/saɪˈdɪəriəl jɪər/C1formalscientific
  • zh地球相对于遥远恒星完成绕太阳一周公转所需的时间,约为365.256天。用于天文学中测量天体运动。

The time it takes for the Earth to complete one full orbit around the Sun relative to the fixed stars, approximately 365.256 days. Used in astronomy to measure celestial motion.

  1. Astronomical time periodC2formal

    The time it takes for the Earth to complete one full orbit around the Sun relative to the fixed stars, approximately 365.256 days.

    zh天文时间周期

    • Astronomers use the sidereal year to track the positions of stars.
    • The sidereal year is about 20 minutes longer than the tropical year.
    • Calculating the sidereal year is essential for precise celestial navigation.