Black Body Radiation Package Tutorial | 函数 »

A body that absorbs all radiation incident on it is called an ideal black body. This package provides functions giving the basic properties of black-body radiation at a specified temperature, and a function for plotting black-body spectral distributions.
 PeakWavelength[temp] wavelength of the maximum emission of a black body at the specified temperature TotalPower[temp] total power of a black body at the specified temperature MaxPower[temp,band] power of a black body at the specified temperature for the specified wavelength band about the peak wavelength

The surface of the sun is about 5000 K. Assuming the sun is a black-body radiator, this gives the wavelength at which its spectrum peaks.
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This gives the total power radiated by a black body at a temperature of 5000 K.
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This gives the radiative power in the wavelength interval of 0.1 about the peak wavelength of a black body at a temperature of 5000 K.
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 BlackBodyProfile[temp1,temp2,...] plot the black-body spectral distribution profiles at the specified temperatures

Plotting black-body profiles.

This gives the spectral distribution of radiation from a black body for three different temperatures.
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Note that BlackBodyProfile takes the same options as Plot in order to specify different styles for each profile curve.