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quasarLie
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Homework Statement
We consider a planet in a circular orbit around a star.
I have to calculate the average temperature knowing that the radius of the orbit is 0.4 AU and that the planet reflects 30% of the incident light
Homework Equations
The Attempt at a Solution
I used this equation
[tex] F = L/4 \pi D²[/tex]
And
[tex] F = \sigma T^4[/tex]
So i can have T, but i don't know how to use the albedo
Thanks