SOLAR SYSTEM

Detailed explanation-1: -The first law (Law of orbits): All the planets revolve around the sun in elliptical orbits having the sun at one of the foci . The second law (Law of areas): The radius vector drawn from the sun to the planet sweeps out equal areas in equal intervals of time.

Detailed explanation-2: -“The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.” That’s Kepler’s Third Law in a nutshell, and it arises from the third physical property of ellipses, related to its various axis points.

Detailed explanation-3: -A planet revolving in an elliptical path has a constant angular momentum. This can be justified by Kepler’s Laws. According to law of equal areas, if a straight line is drawn from the centre of the sun to the centre of the planet moving on the elliptical path, it will cover equal areas in equal intervals of time.

Detailed explanation-4: -Kepler’s third law-sometimes referred to as the law of harmonies-compares the orbital period and radius of orbit of a planet to those of other planets.

Detailed explanation-5: -We now refer to the following statement as Kepler’s First Law: The planets orbit the Sun in ellipses with the Sun at one focus (the other focus is empty).