Johannes Kepler was born in Germany on December twenty seven. He was child of poor parents and was abandoned by his father, …show more content…
The first planetary law that was discovered by Kepler was the law of ellipse. This law explains that planets are orbiting with the sun in a path, which is called ellipse. Meaning that the sun is the center making the planets move around it trough an orbit. The second law that was created was called the law of equal areas. This law describes the speed of any planet the will orbit the sun. When the planet is moving in space its constantly changing speed because when it gets next to the sun it moves at high speed and when it moves away from the sun its speeds slows down since its not close anymore to it. Meaning the planets don’t move on a constant speed their speeds depends on the distance between the planets and the sun, which makes them able to change speeds. The third law is the law of harmonies. This law describes how the orbital period and radius are compared with other planets. The third law differs a lot from the first and second law. Because the first and second law where about the motion of a single planet whereas the third law makes a comparison between different