The Laws of Kepler describe the motion of planets around the Sun.
- The First Law states that orbits are elliptical, with the Sun at one of the foci.
- The Second Law asserts that a planet sweeps equal areas in equal times, meaning its orbital speed varies during the orbit.
- The Third Law establishes that the square of a planet’s orbital period is proportional to the cube of its average distance from the Sun.
These laws revolutionized astronomy and were proposed by Johannes Kepler in the early 17th century.
