Question

How did the Ptolemaic model differ from other proposed solar system models ?

Answer 1

The Ptolemaic model of the solar system was geocentric, meaning that it was the earth that was at the center of the universe — and everything revolved around it. The main difference between it and other models was that they were heliocentric, where it was the sun at the center of the solar system with the planets revolving around it.

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Answer 2

Answer: The Ptolemaic model differs from other proposed solar system models because the planets have epicycles.

Explanation: Ptolemaic model believed that the earth is at the centre with the moon, sun, stars and other planets rotating or revolving around the earth. This model assumed that the planet moved in a circle. Thus, it is a model of the structure of the solar system.

Epicycles are orbits rotating on another circular orbit.