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*[https://www.britannica.com/biography/Cecilia-Payne-Gaposchkin Britannica-Cecilia Payne-Gaposchkin-British-born American astronomer]

*[https://www.harvardmagazine.com/2020/05/feature-vita-cecila-payne-gaposchkin Harvardmagazine-Cecilia Payne-Gaposchkin -Brief life of a breakthrough astronomer: 1900-1979 ]