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pe'ri•od-lu•mi•nos'i•ty rela"tion



Pronunciation: (pēr'ē-ud-lOO"mu-nos'i-tē), [key] Astron.
the relationship between the period of light variation and of the absolute magnitude of Cepheid variable stars.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

periodizationperiod of revolution

 

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