Johannes Kepler
They are in the shape of an ellipse.
Johann Kepler
No. Kepler discovered the laws using Tycho Brahe's data.
The laws of planetary motion are attributed to Kepler.
Sir Isaac Newton was the first to develop the three laws of motion.
Johannes Kepler
Silicon Sandy
3 laws' of planetary motion
ellipses, with the sun at one focus of the ellipse
Mindboggling? They are "Laws of Planetary Motion". So I guess the answer is "motion".
Keplar figured out the laws of planetary motion using Tycho Brahe's data.
They all obey Kepler's 3 laws of planetary motion.