Vocab Bloom Hub

sidereal day

/saɪˈdɪəriəl deɪ/

翻译: 地球相对于遥远恒星自转一周所需的时间,约为23小时56分4秒。天文学中用于衡量天体自转。

1 个条目

phrase

/saɪˈdɪəriəl deɪ/C1formalscientific
  • zh地球相对于遥远恒星自转一周所需的时间,约为23小时56分4秒。天文学中用于衡量天体自转。

The time it takes for the Earth to complete one full rotation relative to the fixed stars, approximately 23 hours, 56 minutes, and 4 seconds. It is used in astronomy to measure the rotation of celestial bodies.

  1. Astronomical time measurementC2formal

    The time it takes for the Earth to complete one rotation relative to the fixed stars, approximately 23 hours, 56 minutes, and 4 seconds.

    zh恒星日

    • Astronomers use the sidereal day to track the positions of stars.
    • A sidereal day is about 4 minutes shorter than a solar day.
    • The observatory's schedule is based on the sidereal day.