The above-mentioned difference between the geocentric and heliocentric models is with respect to the Copernicus model of the solar system. The retrograde motion of Mars can be easily explained using the heliocentric theory.
The retrograde motion of Mars cannot be explained using the geocentric theory. The retrograde motion of the planets is explained using the concept of Earth’s orbital motion. The retrograde motion of planets is explained using the concept of epicycles. Not only the earth, everything else (in the solar system) revolves around the sun in concentric spheres.Īpart from the earth, everything else in the universe is made from Aether.Īll the celestial objects including the earth are made from earth-like materials. Not only the sun, everything else revolves around the earth in concentric spheres. In heliocentrism, Sun is the center of the solar system or universe.Īccording to the geocentric theory, the sun revolves around the earth in concentric spheres.Īccording to the heliocentric theory, the earth revolves around the sun in concentric spheres.
In geocentrism, Earth is the center of the solar system or universe.