Copernicus' Sol
The most famous page in De revolutionibus is seen on the left. This page is of a woodcut of Copernicus' heliocentric model of the solar system. The planets Mercury, Venus, Earth, Mars, Jupiter and Saturn revolve around the sun in concentric circular orbits.
Copernicus, Nicolaus (1473-1543). De revolutionibus orbium caelestium, 1566.