What stellar structure forms when a low-mass star begins hydrogen-shell burning after core hydrogen depletion?

Answer

Red giant

When core hydrogen is depleted, the resulting contraction heats an outer hydrogen shell, causing the star's outer layers to expand dramatically, transforming it into a red giant.

What stellar structure forms when a low-mass star begins hydrogen-shell burning after core hydrogen depletion?

#Videos

Low Mass Stars: Crash Course Astronomy #29 - YouTube

ElementstarmassFusion