FreeNoah

Astronomy A6 (19/20)

An epicycle is a small circle rotating on a bigger one.

Claudius Ptolemy findings of an epicycle provided good reasoning of the ______.

A - interstellar grains.
B - solar nebula theory.
C - retrograde motion.
D - protoplanetary disk.

Need Help? Watch the Video.

©2021 - Freenoah