1. The problem statement, all variables and given/known data What should be the temperature of a spherical asteroid located between Mars and Jupiter, twice as far from the Sun as Earth? The asteroid has no atmosphere and its albedo is .15. 2. Relevant equations 3. The attempt at a solution The asteroid is twice as far from the Sun as Earth, so it receives ¼ the solar energy. Thus T = [341 W/m2 (1 – 0.15)/(4 5.67e-8 W/(m2 K4))]1/4 = 189 K I know this is right because my professor did this as a solution but I am confused as how this was reached.