An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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spectroscopic degeneracy
  واگنی ِ بیناب‌نمایی  
vâgeni-ye binâbnemâyi
Fr.: dégénérescence spectroscopique  

The situation in which spectroscopic features in a certain optical region are not sensitive enough to distinguish adjacent → luminosity classes, for instance → dwarf stars from → giant stars.

See also: → spectroscopic; → degeneracy.