The surface temperature of a planet depends on both the distance of the planet from the sun and on how the panet's atmosphere distributes energy. mercury has a mass of 0.33 x 104 kg, a radius of 2440 km and it orbits the sun in an elliptical orbit with a semi- major axis of 0.39 au and eccentricity of 0.21. assuming that the sun radiates uniformly at a rate of 4 x 1026 w, cakculate the solar energy fhx (power incident m2 perpendicular to the sun's rays), at mercury's aphelion and perihelion.
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