second radiation constant

second radiation constant

[′sek·ənd ‚rād·ē′ā·shən ‚kän·stənt]
(statistical mechanics)
A constant appearing in the Planck radiation formula, equal to the speed of light times Planck's constant divided by Boltzmann's constant, or approximately 1.4388 degree-centimeters. Symbolized c2; C2.