There r three laws of kepler:
1 law of orbits: acc. to which all planets revolve in elliptical orbits around the sun.
2. law of areas: acc. to this, if we join a planet to the sun by a line then planet sweeps equal area in equal intervals of time.
3. law of peroids: it states that the square of time a planet take to complete one revolution os directly propotional to the cube of its distance from the sun.