The Geocentric
theory asserts on the idea that the Earth is the center of the Solar System. The
geocentric theory first started with the Greeks, mainly the philosopher Ptolemy
in his Ptolemaic system, popular model of this theory. In which Ptolemy
suggested that the circular pattern of the whole system shaped and equant –a
mid of an epicycle moves at a constant and similar speed. But when Copernicus’
heliocentric model of the solar system came about, this theory was abandoned. As
the scientific society has proven that Copernicus theory was more precise with the
use of telescopes, and etc. proved that the Sun was indeed the center of the
universe. Supported by different space expeditions this model was long
forgotten.
