The three basic laws of planetary motion given by kepler can be stated as,

• Kepler’s first law all planets move in an elliptical orbit with the sun at one of the foci of the ellipse.
• Kepler’s second law the line that joins any planet to the sun sweeps out equal areas in equal intervals of time.
• Kepler’s third law the square of the time period of revolution of a planet is proportional to the cube of the semi major axis of the ellipse placed out by the planet.