Henry Norris Russell
Henry Norris Russell | |
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| Born | October 25, 1877 Oyster Bay, New York, U.S. |
| Died | February 18, 1957 (aged 79) Princeton, New Jersey, U.S. |
| Alma mater | Princeton University |
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| Scientific career | |
| Fields | Astronomy |
| Institutions | Princeton University |
| Doctoral advisor | Charles Augustus Young |
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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.