  The probability distribution of temperature of a blackbody can be determined
from its power spectrum. This technique is called blackbody radiation
inversion. In the present paper blackbody radiation inversion is applied on the
spectrum of the Sun. The probability distribution of temperature and the mean
temperature of the Sun are calculated without assuming a homogenous temperature
and without using Stefan-Boltzmann law. Different properties of this
distribution are characterized. This paper presents the very first mention and
investigation of the distortions present within the Sun's spectrum.
