Question

what are the three laws of Kepler?

Answer 1

1. the path of the planets about the sun is elliptical in shape, with the center of the sun being located at one focus.
2. An imaginary line drawn from the center of the sun to the center of planet will sweep out equal areas in equal intervals of time.
3. The ratio pf the square of the periods of any two planets is equal to the ratio of the cubes of there average ratio.

Answer 2

Kepler's first law:

The orbit of a planet is an ellipse with the sun at one of the foci.

Kepler's second law:

The line joining the planet and the sun sweeps equal areas in equal intervals of time.

Kepler's third law:

The square of its period of revolution around the sun is directly proportional to the cube of the mean distance of a planet from the sun.

T² proportional r³ i.e. T²/r³ = constant= K......(1)