A(n) ____ is a small circle whose center is located on the circumference of another larger circle.
A)equant
B)deferent
C)retrograde loop
D)ellipse
E)epicycle

Question

Quizplus · Accepted Answer

A small circle whose center is located on the circumference of another larger circle is called an epicycle. This term was used in ancient astronomy to describe the paths of planets as they appeared to move in retrograde motion in the sky. The idea was that each planet moved in a small circle (or epicycle) around a larger circle (called the deferent) that was centered around the Earth.

A(n) ____ Is a Small Circle Whose Center Is Located