Ptolemy backed Aristotle’s idea that the earth stood still at the center of the universe and was surrounded by a series of clear spheres nestled within each other, upon which the sun, the planets, and the stars were fixed.
Ptolemeus mendukung gagasan Aristoteles bahwa bumi tidak bergerak di pusat alam semesta dan dikelilingi oleh serangkaian bola bening yang saling bertumpukan, dan pada bola - bola itu tertancap matahari, planet - planet, dan bintang - bintang.