An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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equator plane
  هامن ِ هموگاری  
hâmon-e hamugâri
Fr.: plan équatorial  

An imaginary plane → perpendicular to the → axis of a → sphere dividing the sphere into two congruent parts.

See also: → equator; → plane.