An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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circle of altitude
  پرهون ِ فرازا  
parhun-e farâzâ
Fr.: almucantar  

A small circle on the celestial sphere parallel to the horizon. The locus of all points of a given altitude. Also called → almucantar, → altitude circle, → parallel of altitude.

See also: → circle; → altitude.