Upon which point do Copernicus and Kepler disagree?
A)The Moon orbits the Earth.
B)The Earth orbits the Sun.
C)Retrograde motion occurs when one planet overtakes another.
D)The orbits of the planets are ellipses, with one focus at the Sun.
E)Venus will appear as a crescent when she retrogrades between us and the Sun.

Question

Quizplus · Accepted Answer

Copernicus proposed a heliocentric model where planets move in perfect circles around the Sun, while Kepler discovered that planets orbit in ellipses, not perfect circles, with the Sun at one focus of the ellipse.

Upon Which Point Do Copernicus and Kepler Disagree