What Is the MOST Important Use of Cepheid Variables for Astronomers

question 128

Multiple Choice

What is the MOST important use of Cepheid variables for astronomers?

• A) The distance to a Cepheid variable can be found very easily.
• B) The characteristics of the pulsation of a Cepheid variable can be used to investigate conditions in the core of the star.
• C) The diameter of a Cepheid variable can be found very easily.
• D) The metal content of a Cepheid variable can be found very easily.

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