Ptolemy's formulation provided the first successful set of accurate predictions for the:
A) retrograde motion of the planets.
B) annual motion of the Sun across the constellations.
C) precession of Earth's rotation axis.
D) phases of the Moon.

Question

Quizplus · Accepted Answer

Ptolemy's formulation of the geocentric model of the solar system accurately predicted the retrograde motion of the planets, which was one of the biggest challenges for astronomers to explain at the time.

Ptolemy's Formulation Provided the First Successful Set of Accurate Predictions