How massive could a star be and still survive for 9 billion years?

How massive could a star be and still survive for 9 billion years?How massive could a star be and still survive for 9 billion years?The rule of thumb is Mean sequence life time is 10 billion years/M^3 with M in solar masses.



So M^3 = 10 billion years/life time = 10/9

Therefore M%26lt;1.04 M_SunHow massive could a star be and still survive for 9 billion years?About the same size as our sun. It is about 50% (about 4.5 billion years) through its lifetime.How massive could a star be and still survive for 9 billion years?A little more than one solar mass.