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Sidereal day

One day of sidereal time; the time in which Earth rotates once around its axis, relative to the point of the vernal equinox (about 23 hours, 56 minutes, 4 seconds)

📖 Definitions of "Sidereal day"

noun
  1. 1

    One day of sidereal time; the time in which Earth rotates once around its axis, relative to the point of the vernal equinox (about 23 hours, 56 minutes, 4 seconds)

  2. 2

    Rotational period of Earth; the time in which Earth rotates around its axis 360 degrees

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