As soon as its core hydrogen is exhausted,a star like the Sun begins to evolve
A) Toward the upper right in the H-R diagram
B) Toward the zero age main sequence stage
C) Up the main sequence to become an O star
D) Toward the lower left in the H-R diagram
Correct Answer:
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Q14: What do all main sequence stars have
Q15: What is the general name for a
Q16: The age of a cluster can be
Q17: Based on your knowledge of the H-R
Q18: All the stars in a cluster are
Q20: The most important factor affecting a star's
Q21: The sequence of reactions by which stars
Q22: What is the triple alpha process?
A)A fraternity
Q23: What happens when electrons become degenerate?
A)Their pressure
Q24: Which of the following is a key
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