Question

How long do red giants and supergiants last?

Answer 1

$\huge{Hey Mate!!!}$

☆☞ Here is ur answer ☜☆

✔✔ Stars spend approximately a few thousand to 1 billion years as a red giant.

✔✔ Eventually, the helium in the core runs out and fusion stops.

✔✔ The star shrinks again until a new helium shell reaches the core.

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