An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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apparent sidereal time
  زمان ِ اختری ِ پدیدار  
zamân-e axtari-ye padidâr
Fr.: temps sidéral apparent  

The → mean sidereal time corrected for the → nutation and shift in the obliquity of the ecliptic that occurs as a result of the Moon’s gravitational effect. Apparent sidereal time differs from mean sidereal time in that the → true vernal equinox point is used.

See also: → apparent; → sidereal; → time.