Cepheid stars are
A) giant stars that pulsate in brightness, size, and temperature.
B) white dwarf stars late in their evolutionary life.
C) members of binary systems in which one star periodically eclipses the other.
D) stars at an early stage in stellar evolution, pre-main-sequence.
Correct Answer:
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Q274: What characteristic of Cepheid variables makes them
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Q276: Suppose a Cepheid oscillates from an initial
Q277: What is a Cepheid variable star?
A) one
Q278: What are the stars in the lower
Q280: A Cepheid variable is a
A) type of
Q281: Which of these statements about a globular
Q282: The period of variability of a Cepheid
Q283: Where do horizontal-branch stars get their energy?
A)
Q284: What would one expect to find in
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