Wavelength of maximum intensity 

wavelength of maximum intensity: The wavelength at which a perfect radiator emits the maximum amount of energy; depends only on the object's temperature.
where is the wavelength of maximum intensity; b is a constant; and T is the absolute temperature. The Wien displacement constant b is equal to 0.28978 centimeterdegree. Also called Wien displacement law .
radiation at a given temperature, as a function of wavelength; (c) the StefanBoltzmann law relates the time rate of radiant energy emission from a black body to its absolute temperature; (d) the Wien law relates the wavelength of maximum intensity ...
The value of Wien's relationship is that if you can measure the wavelength of maximum intensity from a spectrum, you can use it to calculate a value for the effective temperature. let us see how this works in the example below.
Thus at 6000 K, the wavelength of maximum intensity is 0.29/6000 cm, or 480 nm, corresponding to the yellowgreen part of the visible spectrum. (Recall that 1 nanometer"1 nm"is equal to 109 m; see Appendix 2.) ...
See also: Wavelength of maximum, Wavelength, Emission, Spectrum, Atmosphere
