What are Kepler's achievements?

Kepler discovered three laws of planetary motion, namely, orbit law, area law and periodicity law. These three laws can be described as follows: all planets run in elliptical orbits of different sizes; At the same time, the area swept by the planet in the radial direction on the orbital plane is equal; The square of the planet period of revolution is proportional to the cube of its distance from the sun.

These three laws finally won him the reputation of "sky legislator". At the same time, he also made important contributions to optics and mathematics. He is the founder of modern experimental optics.

Extended data:

Kepler also incorporated religious arguments and reasoning into his works, motivated by religious beliefs and beliefs, that is, God created the world according to an understandable plan, which can be entered through rational natural light.

Kepler called his new astronomy "astrophysics" and? Aristotle's Short Trip, Metaphysics? Aristotle's Tian Bu changed the tradition of ancient physical cosmology by treating astronomy as a part of the mathematical physics of the universe. ?

Baidu Encyclopedia-Johannes Kepler