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The Ptolemaic theory and the Copernican Theory
He went against the Aristotelian theory and he defended the Copernican theory.
Galileo
Nicolaus Copernicus
The Ptolemaic theory and the Copernican Theory.
copernican system -the sun is the center of theuniverse
The heliocentric 'theory' is not really a theory at all, more an assertion that the Sun is at the centre of the solar system. Copernicus's theory assumes that the Sun is at the centre and provides a model of the planets' orbits that uses circles and epicycles to explain the observed orbits. He said it was simpler than the old "geocentric" (Earth centred) Ptolemaic system, but it was not really, it actually had more epicycles. Note: Perhaps the questioner got mixed up. The Copernican theory IS a heliocentric theory. Perhaps the question is about the geocentric theory and the Copernican theory. Anyway, Kepler simplified the heliocentric theory and now we know that his model is correct.
Solar centric is the Copernican theory that Earth moves around the Sun
Galileo believed in the truth of the copernican theory, which stated that the sun was the center of the universe.
Dorothy Stimson has written: 'The gradual acceptance of the Copernican theory of the universe' -- subject(s): Accessible book, Astronomy, History, Solar system 'The gradual acceptance of the Copernican theory of the universe' -- subject(s): Astronomy, History
Likes: Created Copernican Theory, proposed heliocentric theory, great astronomer Dislikes: Went against Church's theory, went against Bible's theory, disagreed with geocentric theory.
Galileo was subject to an Inquisition from the Church because he was teaching Copernican theory.