Question

What is Kepler's law?

Answer 1

Kepler's law:

1. The laws of Kepler describe the movements of the planets throughout the solar system. Johannes Kepler, a German astronomer, developed them.
2. Kepler's rules are applicable to the movements of natural as well as artificial satellites, along with star systems including extrasolar planets.

Kepler’s three laws of planetary motion:

1. The law of ellipses: The journey of such planets around the sun is approximately elliptical, with the sun's center placed at one of the foci.
2. The law of equal areas: A planet travels in its orbit so that a line is drawn between it and the sun and sweeps out equivalent regions in equivalent periods.
3. Kepler's Third Law: The squares of the orbital periods of the planets are directly proportional to the cubes of the semi-major axes of their orbits. Kepler's Third Law implies that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit.

Mathematically, the law of harmony can be represented as:

$\mathrm{P}²=\mathrm{a}³$

Here,

P is the planet's orbit.

a is the size semi-major axis of the orbit.