What did Harlow Shapley study in order to deduce the Milky Way's size and the Sun's position in it?
A) open star clusters
B) globular star clusters
C) interstellar gas clouds
D) spiral arms

Question

Quizplus · Accepted Answer

Harlow Shapley studied globular star clusters to determine the size of the Milky Way and the Sun's position within it. By observing the distribution of these clusters, he concluded that the center of the Milky Way was not near the Sun but rather in the direction of the constellation Sagittarius.

What Did Harlow Shapley Study in Order to Deduce the Milky