This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


gives the radiative power emitted by a black body in the specified wavelength band band about the peak wavelength, at the specified temperature temp.
  • The temperature temp is typically measured in degrees Kelvin (Kelvin). For example: Kelvin.
  • The wavelength band band is typically measured in meters Meter). For example: Meter.