Which star spends the longest time as a main-sequence star?
A) 
B) 
C) 
D) 
Correct Answer:
Verified
Q3: A Type I supernova is as luminous
Q4: A star like the Sun will eventually
Q4: Stars with masses similar to the Sun
Q5: The evolutionary cutoff between low- and high-mass
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,
Q11: A low-mass star that burns helium in
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