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A major flaw of the Ptolemaic model was its complexity in explaining the retrograde motion of planets. Ptolemy introduced the concept of epicycles and deferents to account for this, which made the model overly complicated and not as accurate as later models, such as the heliocentric model proposed by Copernicus.

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What was not a major advantage of Copernicus' Sun-centered model over the Ptolemaic model?

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Ask me a question :)?

how did the ptolemaic model supposedly agree with the bible


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