An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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azimuth circle
  پرهون ِ سوگان، دایره‌ی ِ ~  
parhun-e sugân, dâyere-ye ~
Fr.: cercle d'azimut  

One of great circles of the → celestial sphere which passes through the → zenith, → nadir, and the star, cutting the horizon at right angles. Same as → vertical circle.

See also: → azimuth; → circle.