An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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seeing monitor
  پهره‌گر ِ شکان  
pahregar-e šekân
Fr.: moniteur de seeing  

An optical instrument that follows the variation of → atmospheric turbulence by continuously measuring the → seeing conditions.

See also: → seeing; → monitor.