Where are the MOST massive stars to be found in the main sequence of a Hertzsprung-Russell diagram?
A) upper left end
B) Main-sequence stars all have approximately the same mass, by definition.
C) center
D) lower right end

Question

Quizplus · Accepted Answer

The most massive stars in the main sequence of a Hertzsprung-Russell diagram are found at the upper left end. This is because they are both very luminous and hot, characteristics that place them in this position on the diagram.

Where Are the MOST Massive Stars to Be Found in the Main