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radiance temperature, <of a thermal radiator, for a specified wavelength>
temperature of the Planckian radiator for which the radiance at the specified wavelength has the same spectral concentration as for the thermal radiator considered
Note 1 to entry: The radiance temperature is expressed in kelvin (K).
Note 2 to entry: This entry was numbered 845-04-13 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-1016 in CIE S 017:2011.