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It was the geocentric model of the solar system or universe that stated that the earth was at the center of all things. It was displaced by the heliocentric model of the solar system, which stated that the sun was the center of the solar system.A link can be found below.
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.
Aristarchus of Samos proposed the heliocentric model in the 3rd century BC; however, his model did not work too well because the data the "scientific community" were working with at the time was wildly inaccurate (while at the same time, shockingly accurate in places given the apparatus they were working with).
Geocentric Model, Earth centered ) developed by the Ancient Egyptians, e.g. Ptolemy. This model put the earth at the center of the cosmos and the earth is the origin point from which all other objects are referenced by angles. This model is still used in the Right Acension (RA) system.
Plato and his student Aristotle believed in the geocentric theory. It was the ruling explanation model about how our solar system was put together for several hundreds of years.
Claudius Ptolemy
One of them was Claudius Ptolemy. He made a geocentric model and called it Plotemy's system, it lasted 13 centuries.
Claudius Ptolemy
It was the geocentric model of the solar system or universe that stated that the earth was at the center of all things. It was displaced by the heliocentric model of the solar system, which stated that the sun was the center of the solar system.A link can be found below.
Ptolemy's model of the universe was geocentric, but he did not come up with the theory of geocentricity, The theory that the Earth was the center of everything is thought to have come about during the 4th century BC.
geocentric model & epicycles
The geocentric model.
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.
Aristotle was the first to develop a geocentric theory. But it is generally accepted that the Greek astronomer Ptolemy provided the most elaborated model of the geocentric view of the universe in which the Earth was the center. This idea lasted for centuries until the time of Copernicus.
ptolemy
Ptolemy's geocentric model was used for over 1500 years.
Ptolemy created the Geocentric model in 2AD