Ptolemy's Course of the Planets displayed by CLockwork

Ptolemys Course of the Planets Displayed by Clockwork

How did Ptolemy's model explain the retrograde motions of the planets? - Quora

Ptolemaic system hi-res stock photography and images - Alamy

In Search of Planet Vulcan: The Ghost in Newton's Clockwork Universe: Baum, Richard P., Sheehan, William: 9780306455674: : Books

Starry Messenger: Copernicus, Ptolemy, and Cosmology

From Copernicus to Enlightenment

Ptolemy

What explanations do flat-Earth theorists give in regards to the retrograde motion of some of the planets? - Quora

Ptolemy's Course of the Planets displayed by CLockwork

The Ptolemaic Universe Science at Your Doorstep