Which of the following statements regarding the H-R diagrams of star clusters is NOT correct?
A) A very young cluster will have stars that lie in the right hand side and a little above the main sequence.
B) A very old cluster will show a turn-off point and will have many red and yellow giant stars.
C) A very young cluster will not show a turn-off point.
D) A very old cluster will have many stars in the upper left corner of the H-R diagram.
E) A very young cluster will not have all its stars on the main sequence.

Question

Quizplus · Accepted Answer

A very old cluster will not have many stars in the upper left corner of the H-R diagram, as this region is typically occupied by massive, hot, and short-lived stars that would have already evolved off the main sequence in an old cluster.

Which of the Following Statements Regarding the H-R Diagrams of Star