FAQ About Johannes Kepler

Kepler's laws of planetary motion are three scientific laws that describe the motion of planets around the Sun. The first law, the Law of Ellipses, states that planets orbit the sun in elliptical paths. The second law, the Law of Equal Areas, states that a line connecting a planet to the sun sweeps out equal areas during equal intervals of time. The third law, the Law of Harmonies, establishes a relationship between the time a planet takes to orbit the Sun and its average distance from the Sun.