An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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observational astrophysics
  اخترفیزیک ِ نپاهشی  
axtarfizik-e nepâheši
Fr.: astrophysique observationnelle  

That part of astrophysics that is mainly concerned with the collection of observational data, in comparison with theoretical astrophysics

See also: → observational; → astrophysics.