Multiple Choice
When a variable star periodically changes its luminosity, many of its properties also change. Which of these does NOT change?
A) temperature
B) radial surface speed
C) size
D) rotation rate
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q19: Which of these features do astronomers NOT
Q20: What scientific method is used to observe
Q21: How hot does the core of a
Q22: Which of these do NOT characterize Cepheids
Q23: Which stars undergo a helium flash in
Q25: The main-sequence lifetime of a star with
Q26: In a group of stars with a
Q27: Two close binary stars exchange mass. Which
Q28: How do astronomers know that globular clusters
Q29: What are the products of helium burning