Ptolemy could accurately account for the movements of the planets, if one pretended that they traveled not just in circles, but in circles within circles around a stationary Earth.
In Ptolemy's school of thought, cycles and epicycles (with some additional concepts) were used for modeling the movements of the planets in a cosmos that had a stationary Earth at its center.
Earlier thinkers about other worlds had imagined parallel versions of a Dante's Inferno pocket universe, centered on a stationary Earth.
The ancient paradigms still persisted: the stationary Earth, a sky laden with spheres, crude Aristotelian protophysics.
According to Aristotle's physical interpretation of the model, celestial spheres eternally rotate with uniform motion around a stationary Earth.
The experiments were created to argue the idea of a rotating Earth as opposed to a stationary Earth around which rotated the Sun and planets and stars.
On a stationary Earth the warm air would rise at the equator, moving to the poles where it would sink and flow back to the equator along the surface.
This allowed him to explore alternatives to the Aristotelian notion of a stationary Earth, as he explored the idea of a moving Earth instead.
A geocentric view of the seasons presents an explanation of the year's four seasons from the frame of reference of a stationary Earth with the Sun revolving around it.
For the purposes of a sundial, an excellent approximation assumes that the Sun revolves around a stationary Earth on the celestial sphere, which rotates every 24 hours about its celestial axis.