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Russell, Henry Norris Line breaks: Henry Nor¦ris Rus|sell
Pronunciation: /ˈrʌs(ə)l/

Definition of Russell, Henry Norris in English:

(1877–1957), American astronomer. He worked mainly in astrophysics and spectroscopy, and is best known for his independent discovery of the relationship between stellar magnitude and spectral type, which he represented diagrammatically. See Hertzsprung–Russell diagram.
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