What is true about the stellar populations in the Galaxy?
A) The main star forming regions are outside the Galactic plane.
B) Red stars are only found in the bulge.
C) Most open clusters are in the halo.
D) Only old stars are found in the halo.
E) The bluest stars are in the halo.

Question

Quizplus · Accepted Answer

Only old stars are found in the halo. This is because the halo of the Galaxy is populated by stars that formed early in the Galaxy's history, before it flattened into a disk. These stars are typically older and have lower metal content than those found in the disk or bulge.

What Is True About the Stellar Populations in the Galaxy