sidereal year

/saɪˌdɪriəl jɪər/
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Other forms: sidereal years

Definitions of sidereal year
  1. noun
    the time for the earth to make one complete revolution around the sun, relative to the fixed stars
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    type of:
    year
    the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun
    sidereal time
    measured by the diurnal motion of stars
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