According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
They all obey Kepler's 3 laws of planetary motion.
Johannes Kepler was the first to propose that planets move in elliptical orbits around the sun, based on his observational data. This concept challenged the prevailing belief at the time that planetary orbits were perfect circles. Kepler's laws of planetary motion laid the foundation for modern astronomy.
Silicon Sandy
Johannes Kepler was the person who first showed that planetary orbits are ellipses. His work, published in 1609, is known as Kepler's first law of planetary motion.
newton
Sir Isaac newton, a British scientist, in 1687
Kepler was Brahe's assistant. He continued to analyze Brahe's data after Brahe's died. Kepler determine that the planets revolve around the sun in elliptical, or ovalshaped, orbits. He also developed three laws that describe planetary motion. These laws are still used today. Hope I explained this clearly(:
Isaac newton discovered the three principles of planetary motion
Isaac Newton
Johannes Kepler was the scientist who included three laws of planetary motion as part of his heliocentric theory of the universe. These laws, known as Kepler's Laws of Planetary Motion, describe the orbits of planets around the Sun.
Kepler used Tycho Brahe's data by developing his Laws of planetary motion and by analyzing his observations about planet's orbit.! :D
Johannes Kepler developed the laws of planetary motion.However he was German not Austrian.
3 laws' of planetary motion
According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
Keplar figured out the laws of planetary motion using Tycho Brahe's data.
They all obey Kepler's 3 laws of planetary motion.