ESS220
Prof. Jin-Yi Yu
Apply Wien’s Law To Sun and Earth
q Sun
q     lmax = 2898 mm K / 6000K
q             = 0.483 mm
q
q Earth
q     lmax = 2898 mm K / 300K
q             = 9.66 mm
q
qSun radiates its maximum  energy within the visible portion of the radiation spectrum, while Earth radiates its maximum energy in the infrared portion of the spectrum.