Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook