Pre-main-sequence stars are above and to the right of the main sequence.

Name: Pre-main-sequence stars are above and to the right of the main sequence.
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Question

Quizplus · Accepted Answer

Pre-main-sequence stars are in the process of contracting and heating up towards the main sequence, so they are younger, hotter, and more luminous than main sequence stars. Therefore, they are located above and to the right of the main sequence on the Hertzsprung-Russell diagram.

Pre-Main-Sequence Stars Are Above and to the Right of the Main