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Cepheid variable

noun

Definitions

Noun
  1. 1
    A radially pulsating (expanding and contracting) variable star with a regular period and known relationship between period and intrinsic brightness.

Etymology

From Latin Delta Cephei, the first such star identified. From Cepheus, the name of the constellation in which such stars were first discovered. From being a star with variable brightness.

See also for "cepheid variable"

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