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sidereal time

/saɪˈdɪəriəl taɪm/

翻译: 以地球相对于遥远恒星的自转为基础的时间计量系统,主要用于天文学中追踪天体位置。

1 个条目

phrase

/saɪˈdɪəriəl taɪm/C1formalscientific
  • zh以地球相对于遥远恒星的自转为基础的时间计量系统,主要用于天文学中追踪天体位置。

A timekeeping system based on the Earth's rotation relative to distant fixed stars, used primarily in astronomy to track celestial objects.

  1. Astronomical time measurementC2formal

    A timekeeping system based on the Earth's rotation relative to distant stars, rather than the Sun.

    zh恒星时

    • Astronomers use sidereal time to precisely locate celestial objects.
    • A sidereal day is about 4 minutes shorter than a solar day.
    • The telescope's coordinates are calibrated using sidereal time.