Henry Norris Russell (1877–1957)

Born 1877 CE, died 1957 CE.

Henry Norris Russell ForMemRS HFRSE FRAS (October 25, 1877 – February 18, 1957) was an American astronomer who, along with Ejnar Hertzsprung, developed the Hertzsprung–Russell diagram (1910). In 1923, working with Frederick Saunders, he developed Russell–Saunders coupling, which is also known as LS coupling.

Text from the Wikipedia article Henry_Norris_Russell, licensed CC BY-SA 4.0.

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Henry Norris Russell (1877–1957)

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