An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : comparison
comparison
  هم‌سنجش   
hamsanješ (#)

Fr.: comparaison   

The act of comparing or the process of being compared.

From O.Fr. comparaison from L. comparationem, from p.p. stem of comparare, → compare.

Hamsanješ, from hamsanj present tense stem of hamsanjidan, → compare, + verbal noun suffix.

comparison spectrum
  بیناب ِ هم‌سنجش   
binâb-e hamsanješ

Fr.: spectre de comparaison   

A spectrum of known substances used as a standard of comparison for investigating spectra of celestial objects.

comparison; → spectrum.

comparison star
  ستاره‌ی ِ هم‌سنجش   
setâre-ye hamsanješ

Fr.: étoile de comparaison   

A non-variable star used to monitor the variations of another nearby star.

comparison; → star.