Diagram 15-1
-Refer to Diagram 15-1.A type II Cepheid has been located in a distant globular cluster with a period of 10 days.What is the star's absolute magnitude?
A) (-1)
B) 0
C) (-4)
D) ( -6)
E) The absolute magnitude of a Cepheid variable cannot be determined unless its distance is known.
Correct Answer:
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