Even though the heliocentric model of Copernicus had many advantages over the Ptolemaic model, it suffered from the assumption that the
A) planets moved in ellipses about the Sun
B) planets moved in perfect circles about the Sun
C) planets moved in perfect circles about the Earth
D) Earth was not rotating on its axis

Question

Quizplus · Accepted Answer

The heliocentric model assumed that the planets moved in perfect circles around the Sun, which was later found to be incorrect. Johannes Kepler's laws revealed that planetary orbits are actually elliptical. The other options are not relevant to the shortcomings of the heliocentric model.

Even Though the Heliocentric Model of Copernicus Had Many Advantages