An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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instrumental magnitude
  برز ِ سازالی  
borz-e sâzâli
Fr.: magnitude instrumentale  

The magnitude derived directly using → Pogson’s relation. The instrumental magnitude depends on → detector→ sensitivity, telescope → aperture, exact filter → bandpass, etc. It must be → calibrated to some standard → photometric system.

See also: → instrumental; → magnitude.