The larger its mass, the shorter its life cycle. A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born. ... It is now a main sequence star and will remain in this stage, shining for millions to billions of years to come.
Stars about the size of our sun go through the same first four stages as does any other star. 1. They begin their lives as a nebula, 2. then become a Protostar, 3. eventually becoming a main sequence star 4. and finally a red giant. 5. but the more mass a star has the shorter its life.
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