Unformatted text preview: Almagest (Latinized from the Arabic for ‘the greatest’), c. AD 150. Ptolemy used epicycles, eccentrics, and the equant . Eudoxus (c. 410–350 BC): devised system of nested spheres; adopted by Aristotle. But most astronomers preferred geocentric/geostatic epicycle system: Hipparchus (c. 190–120 BC) Claudius Ptolemy of Alexandria (c. AD 100–160) equant point Earth A C D B Ptolemy's equant center...
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- Spring '11
- History, Planet, Babylonian astronomy, Claudius Ptolemy, Hipparchus, Almagest