The Scientific Odyssey

Episode 3.36: The H-R Diagram

06.16.2017 - By Dr. Chad DaviesPlay

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In the years between 1905 and 1911, the astronomer Ejnar Hertzsprung and Henry Russell Norris developed a way of representing the accumulating astronomical and astrophysical data on stars that revealed the presence of a relationship between a stars brightness and its temperature.  This Hertzsprung-Russell or H-R Diagram would come to revolutionize our understanding of stellar evolution.

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