Astronomy · Stellar Evolution
When does a star enter the Red Giant phase?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When hydrogen fusion begins in the core
- 2When all hydrogen in the core is converted into helium✓
- 3When the star explodes in a supernova
- 4When it becomes a white dwarf
Correct answer
When all hydrogen in the core is converted into helium
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