Asked by Kaitlyn

Calculate the wavelength of peak emission for a typical sunspot and compare it to that of the photosphere. How many times brighter is the photosphere than a typical sunspot? (Hint: Assume the photosphere and a sunspot are good blackbodies for these calculations.)
Answered by drwls
They need to provide you with data on the typical temperature of a sunspot, compared to that of the photosphere.

Use the Wien displacement law (Lambdamax*T = constant) for the first question and the Stefan-Boltzmann (T^4) law for the second question.
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