Posted: May 22nd, 2023

The Ptolemaic model was first developed in the second century

The Ptolemaic model was first developed in the second century. It was believed to be a complicated astronomical system that managed to estimate the position of each planet. Ptolemy observed that the motion of the planets would only be estimated through a mathematical devise and that the model that gives the right answer should be adopted since it is hard to know the truth. Ptolemy’ model assumed that, the earth and not the sun was the center of the solar system. Just like Copernicus, Ptolemy found that, planets move on an epicycle that moves in a much bigger circle referred to as a deferent. He assumed that the stars move around the spheres of the other planets.