Figure 1From: On the average temperature of airless spherical bodies and the magnitude of Earth’s atmospheric thermal effectIllustration of Hölder’s inequality between integrals. Due to a nonlinearity of the SB law and a non-uniform distribution of the incident solar radiation on the surface of a sphere, the equilibrium temperature (Te) computed from a spatially averaged radiation flux is always higher than the arithmetic average temperature (Tm).Back to article page