An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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equator system
  راژمان ِ هموگاری  
râžmân-e hamugâri
Fr.: système équatorial  

A set of celestial coordinates based on the celestial equator as the primary great circle. The coordinates are → declination and → right ascension.

See also: → equator; → system.