An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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last quarter
  چارک ِ واپسین  
cârak-e vâpasin
Fr.: dernier quartier  

One of the phases of the Moon that appears when it is 90 degrees west of the Sun. Approximately one week after a full moon, when half of the Moon’s disk is illuminated by the Sun. → first quarter.

See also: → last; → quarter.