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100
Ptolemaic system
According to the Ptolemaic or geocentric conception, the Solar System is a large sphere at the center of the Universe, and the Earth, flat and immobile, is located at the center of this sphere. Around it they rotate on a series of concentric spheres: the Sun, the Moon and the other planets; everything is surrounded by the last sphere of the fixed stars, which marks the boundary of the Universe. The Universe is therefore imagined full and finite. -
1543
Copernican system
Copernicus replaces a geocentric system with a heliocentric system (based on the centrality of the Sun). Even for Copernicus the cosmos is full and finite, but it is the Sun at the center of the Universe, while the Earth moves around the Sun. The Copernican or heliocentric system has long been opposed. It did not please the authorities of the time, including the Catholic Church, which excommunicated Copernicus