There are stars located in the center bulge of the Milky Way and the spiral arms of the Milky Way. What is the difference between the stars at the center bulge and the stars in the arms?(1 point)

Question

Responses

The stars at the center bulge are typically brighter than the stars in the arms.
The stars at the center bulge are typically brighter than the stars in the arms.

The stars at the center bulge are typically colder than the stars in the arms.
The stars at the center bulge are typically colder than the stars in the arms.

The stars at the center bulge are typically smaller than the stars in the arms.
The stars at the center bulge are typically smaller than the stars in the arms.

The stars at the center bulge are typically older than the stars in the arms.
The stars at the center bulge are typically older than the stars in the arms.

Answer 1

The correct response is:

The stars at the center bulge are typically older than the stars in the arms.

Stars in the bulge of the Milky Way are generally older and tend to be redder and cooler, while the stars in the spiral arms are younger, hotter, and more massive. The spiral arms are regions of ongoing star formation, whereas the bulge contains a higher concentration of older stars.