INFO
Photo licensing: © Harvard-Smithsonian Center for Astrophysics
Country: United States 
Date of birth: 1868, July 4 (156 years ago)
Day of death: 1911, December 12 (113 years ago)
Well-known for: astronomer who discovered the relation between the luminosity and the period of Cepheid variables
Bio: wikipedia EN | CA | DA | DE | ES | FR | IT | NL | NO | PT | RS | SV
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Topic: Science
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