Considering its 10 billion year main sequence lifespan, approximately how many stable years does the Sun have remaining?

Answer

About 5 billion years

The Sun is currently 4.6 billion years old and has an estimated total main sequence lifespan of 10 billion years, leaving approximately 5.4 billion years left in its current state.

Considering its 10 billion year main sequence lifespan, approximately how many stable years does the Sun have remaining?
astronomylifespanstarcelestial body