The Aristotelian Cosmic Theory

According to Cicero, diogenes of Babylon allowed only limited efficacy to astrology. Poseidonius seems to have accepted astrology as a welcome confirmation of the Stoic determinist theory. His interest in the topic may relate to his famous construction of a model of the heavens and armillary sphere. Despite this, it was the Aristotelian cosmic theory that appealed to the later Ptolemy.