Stars evolve to the upper left along the main sequence, after forming in the middle.

Name: Stars evolve to the upper left along the main sequence, after forming in the middle.
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Question

Quizplus · Accepted Answer

Stars actually evolve from the main sequence by moving away from it, typically upwards and to the right on the Hertzsprung-Russell diagram, not along it or to the upper left. They start their lives on the main sequence and move off it as they exhaust their hydrogen fuel.

Stars Evolve to the Upper Left Along the Main Sequence