Suppose that a planet with no atmosphere orbits a Sunlike star at the same radius as the Earth’s orbit and keeps the same face toward the sun at all times. The planet reflects 40% of the light falling on it, and the average temperature on the facing surface is nearly uniform and 185 K larger than the nearly uniform temperature on its back surface. What is the planet’s average temperature? The planet's average planetary temperature is _______ K.

Suppose that a planet with no atmosphere orbits a Sunlike star at the same radius as the Earth’s orbit and keeps the same face toward the sun at all times. The planet reflects 40% of the light falling on it, and the average temperature on the facing surface is nearly uniform and 185 K larger than the nearly uniform temperature on its back surface. What is the planet’s average temperature? The planet's average planetary temperature is _______ K.