Star clusters are important to our study of stars because
A) all stars formed in star clusters.
B) the Sun was once a member of a globular cluster.
C) they give us a method to test the our theories and models of stellar evolution.
D) they are the only objects that contain Cepheid variables.
E) All of the other choices are correct.
Correct Answer:
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Q5: Helium flash occurs
A)because helium is very explosive
Q6: A Sun-like star will experience a helium
Q7: In the orbital plane of a binary
Q8: The _ stars are giant stars fusing
Q9: In the diagram below, which point indicates
Q11: As a Sun-like main-sequence star exhausts hydrogen
Q12: If the stars at the turnoff
Q13: The triple-alpha process
A)controls the pulsations in Cepheid
Q14: Which of the following nuclear fuels does
Q15: Mass is transferred from a normal star
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