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sidereal month

/saɪˈdɪəriəl mʌnθ/

翻译: 月球绕地球公转一周相对于固定恒星所需的时间,约为27.3天。也称作恒星月。

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phrase

/saɪˈdɪəriəl mʌnθ/C1formalscientific
  • zh月球绕地球公转一周相对于固定恒星所需的时间,约为27.3天。也称作恒星月。

The period of time it takes for the Moon to complete one full orbit around Earth relative to the fixed stars, approximately 27.3 days.

  1. Astronomical time periodC2formal

    The time it takes for the Moon to complete one full orbit around the Earth relative to the fixed stars, approximately 27.3 days.

    zh天文时间周期

    • A sidereal month is about 27.3 days long.
    • Astronomers use the sidereal month to track the Moon's position among the stars.
    • The difference between a synodic month and a sidereal month is about 2.2 days.