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TAKE THE QUIZ“Luminosity law”
The following 2 entries include the term Luminosity law.
mass-luminosity law
noun: a statement in astronomy: there is a close correlation between the luminosities or absolute magnitudes of stars and their masses so that the more massive stars are in general the more luminous
period-luminosity law
noun: a law in astronomy: the period of light variation of a Cepheid variable is in direct relation with its absolute magnitude whereby intrinsically fainter stars have the shorter periods
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Merriam-Webster unabridged
