An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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celestial meridian
  نیمروزان ِ آسمانی  
nimruzân-e âsmâni (#)
Fr.: méridien céleste  

The great circle on the → celestial sphere, passing through the two → celestial poles and the observer’s → zenith.

See also: → celestial; → meridian.