A low-mass star that burns helium in its core and hydrogen in a shell is more luminous than a similar star that burns only hydrogen in a shell around a dead core.
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Q6: The main-sequence lifetime of a star is
Q7: The Sun eventually could become a nova.
Q9: When a star burns hydrogen in a
Q10: A main-sequence star is unique because
A) hydrostatic
Q11: If a main-sequence star's core temperature increased,
Q12: The more massive a star,the more hydrogen
Q13: Pressure from degenerate electrons keeps the core
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Q15: Stars evolve primarily because they run out
Q16: What factor is most important in determining
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