Distances of Inferior Planets from the Sun Johannes Kepler was able to find the distance of the inferior planets (Mercury and Venus) from the Sun by using geometric drawings. That is, he made a scale drawing of the orbits of Earth and inferior planets in which he called the distance between Earth and Sun 1 Astronomical Unit (A.U.).
The average greatest elongation for the planet Mercury is 23º. The average greatest elongation for Venus is 46º. Using this information, determine the average distance of Mercury and Venus from the Sun in A.U. by doing the following: