Copernicus proposed a heliocentric model of the solar system where planets revolve around the Sun, providing a simpler and more accurate explanation for celestial motions compared to Ptolemy's geocentric model where planets were believed to orbit the Earth. Copernicus' model was more consistent with observed planetary movements and laid the foundation for modern astronomy.
Copernicus challenged Aristotle's theories of planetary motion due to observations that didn't align with the geocentric model, particularly the retrograde motion of planets. Through his own observations and mathematical calculations, Copernicus proposed a heliocentric model where the Earth and other planets revolve around the Sun, providing a simpler explanation for the observed phenomena in the sky.
Kepler disagreed with Copernicus on the shape of planetary orbits. Copernicus believed in circular orbits, while Kepler's observations led him to propose elliptical orbits. Kepler's laws of planetary motion refined and corrected some of the assumptions in Copernicus' heliocentric model.
Copernicus did not reject the idea that planetary orbits around our Sun were circular.
Aristarchus of Samos
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Copernicus proposed a heliocentric model of the solar system where planets revolve around the Sun, providing a simpler and more accurate explanation for celestial motions compared to Ptolemy's geocentric model where planets were believed to orbit the Earth. Copernicus' model was more consistent with observed planetary movements and laid the foundation for modern astronomy.
Copernicus challenged Aristotle's theories of planetary motion due to observations that didn't align with the geocentric model, particularly the retrograde motion of planets. Through his own observations and mathematical calculations, Copernicus proposed a heliocentric model where the Earth and other planets revolve around the Sun, providing a simpler explanation for the observed phenomena in the sky.
COPERNICUS!!
Kepler disagreed with Copernicus on the shape of planetary orbits. Copernicus believed in circular orbits, while Kepler's observations led him to propose elliptical orbits. Kepler's laws of planetary motion refined and corrected some of the assumptions in Copernicus' heliocentric model.
Copernicus did not reject the idea that planetary orbits around our Sun were circular.
Johan kepler.
Kepler showed that planetary orbits were actually ellipses, not circles as proposed by Copernicus.
Revolution (about its primary) and Rotation (about its axis)
Only one force - gravity.
Aristarchus of Samos
He suggested the orbits were circles.