Final answer:
Johannes Kepler put forward Kepler's third law, which relates the square of the period to the cube of the distance for planetary motion. This law states that the square of a planet's orbital period is directly proportional to the cube of the semimajor axis of its orbit.
Step-by-step explanation:
Kepler, Johannes is the scientist who put forward the Harmonic Law of planetary motion, relating the square of the period to the cube of the distance. This law is also known as Kepler's third law. It states that the square of a planet's orbital period is directly proportional to the cube of the semimajor axis of its orbit. In equation form, this can be written as:
T12 / T22 = (a1 / a2)3