I'm trying to understand how to calculate the Equilibrium Temperatures of Planets. This is the beginning of my working for it... enter image description here

However, whenever I look at external sources, (like this Princeton source), they don't account for the emissivity of the planet on line 3, and hence my calculations deviate from theirs. Why is this?

  • $\begingroup$ But the Princeton source accounts for $(1 - A)$ all over the place, corresponding to $(1-\alpha)$ or $e$ in your sheet. So I don't see any difference. $\endgroup$ – Thomas Fritsch Apr 1 at 14:47
  • $\begingroup$ @ThomasFritsch It wasn’t accounted for when they were getting the formula for the power emitted by the planet. They only accounted for e when they were expressing power absorbed in relation to solar constant. I accounted for it in both, because I have the understanding that e matters for both absorption and emission. $\endgroup$ – Main Man Andy Apr 1 at 14:59

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