Multiple Choice
The significant feature of a Cepheid variable is that there is a relationship between two intrinsic parameters,the first being easily measured,the second being the parameter that is required.These parameters are
A) variation of spectral color and distance to the star.
B) period of brightness variation and spectral color.
C) period of brightness variation and luminosity.
D) amplitude of brightness variation and luminosity.
Correct Answer:

Verified
Correct Answer:
Verified
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