What is the size of a star in the upper right part of the Hertzsprung-Russell diagram compared to one in the middle of the diagram?
A) It is fainter.
B) It is hotter.
C) There are no stars in the upper right part of the diagram.
D) It is larger.

Question

Quizplus · Accepted Answer

Stars in the upper right part of the Hertzsprung-Russell diagram are larger compared to those in the middle of the diagram. This is because stars in the upper right part of the diagram are typically more evolved and have exhausted the hydrogen fuel in their core, causing them to expand and cool down.

What Is the Size of a Star in the Upper