How was Aristotle’s model similar to Ptolemy’s model?

Both Aristotle and Ptolemy described a geocentric system, meaning they placed Earth at the center. In their models, the Sun, planets, and other celestial bodies moved around Earth. Ptolemy added details such as epicycles to explain the planets’ apparent motions, but the shared central idea was that Earth was at the center—not that the Sun was.

AI-written and checked against the verified answer.