who came up with the heliocentric theory
Heliocentrism, or heliocentricism, is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System.n the 16th century, Nicolaus Copernicus 's De revolutionibus presented a full discussion of a heliocentric model of the universe in much the same way as Ptolemy 's Almagest had presented his geocentric model in the 2nd century.