Annie Jump Cannon personal correspondence, 1940-1941.
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Cannon, Annie Jump, 1863-1941
http://n2t.net/ark:/99166/w6sj3nw4 (person)
Annie Jump Cannon (1863-1941) was the first astronomer to systematically classify the stars. She classified stars according to their stellar spectra using a procedure set up by Williamina Fleming. She is credited with classifying 400,000 stellar bodies and discovering more than 300 variable stars, 5 novae, and one spectroscopic binary. After earning a B.S. at Wellesley College in 1884, she spent the next ten years both at home and travelling abroad. She returned to Wellesley in 1894 for graduate...