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sidereal time

/saɪˈdɪəriəl taɪm/

1 entry

phrase

/saɪˈdɪəriəl taɪm/C1formalscientific
  • ruСистема измерения времени, основанная на вращении Земли относительно далёких неподвижных звёзд, используемая в основном в астрономии для отслеживания небесных объектов.

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.

    ruЗвёздное время

    • 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.