Question

what are the laws of Kepler​

Answer 1

Answer:

First Law :

The planets revolve in elliptical orbits with the sun being at one of the foci of the ellipse.

Second Law :

The radius vector joining the sun and the planet will sweep equal areas in equal intervals of time, which implies that the aerial velocity of the planet is constant which is a direct consequence of conservation of angular momentum.

Third Law :

The square of the time period of the planet is proportional to the cube of the semi major axis of the elliptical orbits.