07-29-2015, 02:35 PM
Say, how does one calculate blackbody temperatures for bodies in a multiple star system? I know that in single star systems, it's proportional to the fourth root of the star's luminosity. I'd suppose that a body that orbits two stars would use the fourth root of the sum of the stars' luminosities. But then how do we calculate the temperature contribution of the stars that the planet doesn't orbit?