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Johannes Kepler
No. Kepler discovered the laws using Tycho Brahe's data.
Johannes Kepler
Johannes Kepler
I'm pretty sure you're thinking of Johannes Kepler.
3 laws' of planetary motion
Johannes Kepler is credited with forming the mathematics of elliptical orbits.
He established the laws of planetary motion.
Johannes Kepler
Johannes Kepler
"Eponymous" means "Same name". The laws of planetary motion were devised by Johannes Kepler, and are generally called "Kepler's Laws".
Johannes Kepler proposed that these planets orbit the sun in ellipses, not circles. That is why we have Kepler's Law of Planetary Motion.