Cecilia Payne-Gaposchkin was a British-born American astronomer and astrophysicist who proposed in her 1925 doctoral thesis that stars were composed primarily of hydrogen and helium. Wikipedia
Born: May 10, 1900, Wendover, United Kingdom
Died: December 7, 1979 (age 79 years), Cambridge, MA
Education: Harvard University (1923–1925), Radcliffe Institute for Advanced Study (1925), Newnham College, University of Cambridge (1919–1922), and more
Children: Katherine Haramundanis, Peter John Arthur Gaposchkin, and Edward Gaposchkin
Parents: Emma Leonora Helena
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