What evolutionary phase does a Sun-like star enter after exhausting the hydrogen fuel in its core?

Answer

Red Giant

Once hydrogen fuel in the core is exhausted, the core contracts and heats up, causing the outer layers to swell enormously, turning the star into a Red Giant.

What evolutionary phase does a Sun-like star enter after exhausting the hydrogen fuel in its core?

#Videos

Low Mass Stars: Crash Course Astronomy #29 - YouTube

astronomystarsmasslow-mass