Concept

Kepler's Laws

The three laws of planetary orbits.

Johannes Kepler's three laws: orbits are ellipses with the Sun at one focus, equal areas sweep in equal times, and orbital period squared is proportional to semi-major axis cubed.

Overview

Johannes Kepler's three laws: orbits are ellipses with the Sun at one focus, equal areas sweep in equal times, and orbital period squared is proportional to semi-major axis cubed.

See also