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OpenStudy (anonymous):
n The mass of a star is many times bigger than the Sun. What other information is needed about the star in order to estimate its age using the star life cycle?
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OpenStudy (anonymous):
The elemental composition of the star. Stars do fusion, not fission. In stars (and anything else we know of, if I recall correctly) once Fe is formed, fusion cannot occur. That is two Fe atoms cannot be fused to form Tellurium and the star life is at its end.
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