A star at the tip of the asymptotic giant branch (AGB) is a
A) cool main-sequence star.
B) blue supergiant.
C) star in its first red-giant phase.
D) red supergiant.
Correct Answer:
Verified
Q2: Helium nuclear reactions (helium fusion) produce primarily
A)
Q3: The structure of the deep interior of
Q4: How much brighter than its main-sequence luminosity
Q5: Low-mass stars can ascend the H-R diagram
Q6: Helium nuclear reactions take place in a
Q7: Consider a group of stars with masses
Q8: Consider a group of stars with masses
Q9: A star ascending the red-giant branch for
Q10: During its time on the asymptotic giant
Q11: The nuclear process in which helium fusion
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