The Progression to Proving a Heliocentric System

615 Words Feb 18th, 2018 2 Pages
In the Ptolemaic system the Earth is at the center of all celestial bodies. This theory was widely accepted especially by the Church who held much prominence in Europe. The Catholic Church believed that God formed the earth therefore it should sit at the center of the universe. It wasn't until the 16th century, when a man name Nicolas Copernicus presented a theory which contradicted all that was known in the world of astronomy. Copernicus presented a heliocentric system, in which he placed the sun at the center of the universe, motionless, with the Earth and other planets rotating around it in circular paths modified by epicycles. Thomas S. Kuhn, in his book, The Copernican Revolution, states that “Copernicus, the author of the theory that ultimately deprived the heavens of special power, belonged to the minority group of Renaissance astronomers who did not caste horoscopes” (pg. 94). The Copernican system initially began as a system of minorities, however, as time continued it began to see prominence. Both Johannes Keppler and Galilei Galileo, through their observations and theories began to prove a heliocentric system.

Through the utilization of his telescope, Galileo helped prove Copernicus’ heliocentricism. Using his telescope Galileo saw four moons around Jupiter and the phases of Venus which helped support a heliocentric solar system. Copernicus predicted that all phases…