An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Planck's blackbody formula
  دیسول ِ سیه‌جسم ِ پلانک  
disul-e siyah jesm-e Planck
Fr.: formule du corps noir de Planck  

A formula that determines the distribution of intensity of radiation that prevails under conditions of thermal equilibrium at a temperature T: Bv = (2hν3 / c2)[exp(hν / kT) - 1]-1 where h is Planck’s constant and ν is the frequency.

See also: → Planck; → blackbody;
→ formula.