Ptolemy's model of planetary motion failed because
A) it did not factor in the Earth's tilt.
B) it assumed that the Earth was the center of the universe.
C) he placed the planets in the wrong order from the Sun.
D) it did not accurately predict the movements of the planets.
E) Both a and c

Question

Quizplus · Accepted Answer

Ptolemy's geocentric model assumed that the Earth was the center of the universe, which was incorrect.

Ptolemy's Model of Planetary Motion Failed Because