A Major Contribution of Ptolemy to the Development of Astronomy

question 340

Multiple Choice

A major contribution of Ptolemy to the development of astronomy was

• A) origination of the idea of a geocentric (Earth-centered) cosmology, which was later developed by Aristarchus.
• B) derivation of a model for the solar system in which the planets move around the Sun in circular orbits.
• C) derivation of the model for the solar system in which the planets move around Earth in elliptical orbits, moving fastest when closest to Earth.
• D) derivation of a model for the solar system in which the planets moved in epicycles and the epicycles orbited Earth.

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