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Cepheid

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cepheid

Main Entry:: Ce·phe·id
Pronunciation:: \ˈse-f(ē-)id, ˈsē-\
Function:: noun
Etymology:: International Scientific Vocabulary, from Cepheus
Date:: circa 1903

: any of a class of variable stars whose very regular light variations are related directly to their intrinsic luminosities and whose apparent luminosities are used to estimate distances in astronomy

Learn more about "Cepheid" and related topics at Britannica.com

See a map of "Cepheid" in the Visual Thesaurus

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