Henry Norris Russell
Henry Norris Russell (October 25, 1877 – February 18, 1957) was a US astronomer who, along with Ejnar Hertzsprung, developed the Hertzsprung-Russell diagram (1910).
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October 25 - 1877 - February 18 - 1957 - US - Astronomer - Ejnar Hertzsprung - Hertzsprung-Russell diagram - 1910
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He co-wrote an influential two-volume textbook in 1927 with Raymond Smith Dugan and John Quincy Stewart: Astronomy: A Revision of Young?s Manual of Astronomy (Ginn & Co., Boston, 1926–27, 1938, 1945). This became the standard astronomy textbook for about two decades. There were two volumes: the first was The Solar System and the second was Astrophysics and Stellar Astronomy.
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1927 - Raymond Smith Dugan - John Quincy Stewart
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