Question

The solar system is about 5 billion years old and completes one orbit around the center of the Milky Way in 220 million years. Therefore, we conclude that the Solar system has completed a total of about _______ orbits around the Galactic Center.

A. 5
B. 10
C. 22
D. 50

Answer 1

C.

The solar system is about 5 billion years old and completes one orbit around the center of the Milky Way in 220 million years. Therefore, we conclude that the Solar system has completed a total of about 22.72 orbits around the Galactic Center.
A. 5
B. 10
C. 22
D. 50