The three laws of Kepler are as follows:Law of OrbitsLaw of AreasLaw of PeriodsThe first law states that all planets move around the sun in an orbit. Law of areas affirms the fact that a straight line connecting a planet and the sun covers equal areas in equal time intervals. The law of periods states that the square of the time taken by the planet to revolve around the sun is co-related to the semi-major axis of its orbit.