The planet Neptune receives approximately 1/900th the sunlight received by the Earth. Given this, how many times further from the Sun is Neptune compared to the Earth?

Question

Quizplus · Accepted Answer

The intensity of sunlight decreases with the square of the distance from the Sun. If Neptune receives 1/900th the sunlight, it is √900 = 30 times further from the Sun than Earth.

The Planet Neptune Receives Approximately 1/900th the Sunlight Received by the Earth