SOLAR SYSTEM

Detailed explanation-1: -Three laws by Kepler: An imaginary line drawn from the center of the sun to the center of the planet will sweep out equal areas in equal intervals of time (Law of equal areas). The ratio of the squares of the periods of any two planets is equal to the ratio of the cubes of their average distances from the sun.

Detailed explanation-2: -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-3: -Kepler’s Third Law Equation 13.8 gives us the period of a circular orbit of radius r about Earth: T = 2 r 3 G M E . T = 2 r 3 G M E .