An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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celestial equator
  هموگار ِ آسمانی  
hamugâr-e âsmâni
Fr.: équateur céleste  

An imaginary great circle on the sky half-way between the → celestial poles. It is the projection of the → equator of the Earth on the sky.

See also: → celestial; → equator.