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period-luminosity relation

[peer-ee-uh d-loo-muh-nos-i-tee] /ˈpɪər i ədˌlu məˈnɒs ɪ ti/
noun, Astronomy
1.
the relationship between the period of light variation and of the absolute magnitude of Cepheid variable stars.
Origin
1945-1950
1945-50
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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