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3 March, 01:14

What two observable properties of a cepheid variable are directly related to one another?

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  1. 3 March, 01:39
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    Answer: At the period that's between its peaks of brightness and its luminosity.

    Explanation:

    The two observable properties of a cepheid variable that are directly related to one another at the period between its peaks of brightness and its luminosity. The period-luminosity relation allows us to determine its luminosity from the period between its peaks of brightness. In astronomy, a period-luminosity relation is a relationship linking the luminosity of pulsating variable stars with their pulsation period. The popular relation, for Classical Cepheid variables, is also called Leavitt's law
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