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Emitted radiation and absorbed solar radiation

  1. Apr 1, 2009 #1
    Jupiter has a black body temperature of 125K, but this is 20 K higher than the temperature that would be calculated from absorbed solar radiation alone. From this information, calculate the ratio of emitted radiation to absorbed solar radiation on Jupiter.

    I started using

    W = sigma * area * temp^4

    Is that of any help?
    Or are they any hints that I might try to start with?
     
  2. jcsd
  3. Apr 1, 2009 #2
    Stefan–Boltzmann law is correct.
    No need to include area; just use the ratio of the two in terms of their irradiance, comparing the 4th power of the temperature of the two.
    ...
     
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