The Significant Feature of a Cepheid Variable Is That There

question 60

Multiple Choice

The significant feature of a Cepheid variable is that there is a relationship between two intrinsic parameters, one of which can be easily measured, while knowledge of the other parameter is required. These parameters are

• A) period of brightness variation and spectral color.
• B) variation of spectral color and distance to the star.
• C) period of brightness variation and luminosity.
• D) amplitude of brightness variation and luminosity.

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