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sidereal day

/saɪˈdɪəriəl deɪ/

1 entry

phrase

/saɪˈdɪəriəl deɪ/C1formalscientific
  • ruВремя, за которое Земля совершает один полный оборот относительно неподвижных звезд, приблизительно 23 часа 56 минут и 4 секунды. Используется в астрономии для измерения вращения небесных тел.

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.

    ruЗвёздные сутки

    • 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.