How did Harlow Shapley determine where the center of the galaxy lies
A)He plotted the distribution of open clusters.
B)He plotted the distribution of globular clusters.
C)He made star counts in every direction of the galactic disk.
D)He measured the amount of dust obscuration in every direction of the galactic disk.

Question

Quizplus · Accepted Answer

Harlow Shapley plotted the distribution of globular clusters to determine where the center of the galaxy lies. He found that the majority of these clusters were located in a region of the sky in the direction of the constellation Sagittarius, leading him to conclude that the center of the galaxy lay in that direction.

How Did Harlow Shapley Determine Where the Center of the Galaxy