We can determine the age of a star cluster by measuring the color of the reddest red giant stars in the cluster.
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Q1: The principal means by which high-mass stars
Q2: The nuclear reaction that produces most of
Q3: An 8M
Q4: Pulsating variable stars are more commonly known
Q5: The production of large numbers of neutrons
Q7: We can determine the age of a
Q8: Neutron stars are sometimes found in binary
Q9: The CNO cycle is the dominant mechanism
Q10: Most of the uranium (atomic mass= 238)
Q11: A main-sequence star of 25 solar masses
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