Question

Suppose we find a planet with an orbital period of 200 days around a star with the same mass as the Sun, but only 75 percent as luminous. What is the planet’s semi-major axis, in AU?

For the planet in the problem above, how many times more flux does it receive, relative to Earth?

(If you find that the flux is less than that of Earth, express your answer as a decimal. For example, if the planet receives half as much flux as Earth, enter 0.5.)

Answer 1