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None of it but Galileo's discoveries with the telescope were very important in raising questions about the old Ptolemaic theory, which was geocentric. However Galileo's discovery of Venus's phases was not a proof of the heliocentric principle because Tycho produced a geocentric model that explained Venus's phases.
Geocentric model -- In a geocentric system Earth is at the center of the revolving planets. It is made by a Greek astronomer named Ptolemy. Heliocentric model -- In a heliocentric system Earth and the other planets revolve around the sun. It is made by Galileo.
In a heliocentric model the Sun is the center of the universe e.g. planets gravitate around the Sun due to centripetal forces. In contrast, in a geocentric model, everything orbitates around "geo" or Earth.
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The Bible is written from an implicitly geocentric viewpoint, so if we take the Bible as the ultimate authority on everything, then it would be wrong to come to other conclusions such as the heliocentric theory, merely by observing the way the universe actually is. Incidentally, although Galileo did support the heliocentric theory, it was originally proposed by Copernicus. It isn't Galileo's model. Galileo did contribute to this theory with his astronomical observations, however.
The Geocentric or Ptolemaic Model put the earth at the center of the Universe. The Heliocentric Model postulated by Copernicus and, before him, Aristarchus, places the Sun at the center of the Solar System. Galileo's observations proved the validity of the Heliocentric Model.
The heliocentric model is the one that replaces the geocentric model because the heliocentric model better described the solar system.
None of it but Galileo's discoveries with the telescope were very important in raising questions about the old Ptolemaic theory, which was geocentric. However Galileo's discovery of Venus's phases was not a proof of the heliocentric principle because Tycho produced a geocentric model that explained Venus's phases.
Geocentric model -- In a geocentric system Earth is at the center of the revolving planets. It is made by a Greek astronomer named Ptolemy. Heliocentric model -- In a heliocentric system Earth and the other planets revolve around the sun. It is made by Galileo.
The planets Uranus and Neptune were discovered only in modern times after the heliocentric model had been generally accepted.
Claudius Ptolemy, an Egyptian astronomer, mathematician, and geographer, proposed the geocentric model around 140 B.C.The geocentric model states that the Earth exists at the center of the universe and everything else revolves around it. This was later shown incorrect by multiple other astronomers, such as Galileo, and proposed the more correct Heliocentric model.
In a heliocentric model the Sun is the center of the universe e.g. planets gravitate around the Sun due to centripetal forces. In contrast, in a geocentric model, everything orbitates around "geo" or Earth.
Heliocentric means the sun is the center - everything goes around it. Geocentric means the Earth is the center and everything goes around us.
The heliocentric theory is the idea that planets rotate around the sun, where the geocentric theory said that everything orbited around Earth.
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Geocentric models had the earth as the center of the universe with the sun and all the planets orbiting it. Heliocentric models (the current accepted ones) have the sun as the center, with the earth and planets orbiting it.
A heliocentric model of the universe. Church believed in a geocentric model.