A mathematical representation of the orbits of the planets, configured in a way that planets would have figure eight motions that would partially explain retrograde motions.
He thought the earth was at the center of the universe and developed the theory of the Crystal spheres. He studied under Plato in Athens, Greece.
Eudoxus of Cnidus, a student of Plato, developed the system of concentric spheres in his attempt to explain planetary motion and the movements of the stars. This system later influenced the Ptolemaic astronomical model, which incorporated epicycles to account for observed planetary motion.
when was eudoxus born/death
Eudoxus thought that the planets revolved around the Earth not the Sun.
Aristotle
math and astromony
408 BCE
408 - 357 bce
Graph
Ant
Spirits
WHAST