# Cecilia Helena Payne Gaposchkin > British-born American astronomer **Wikidata**: [Q234909](https://www.wikidata.org/wiki/Q234909) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Cecilia_Payne-Gaposchkin) **Source**: https://4ort.xyz/entity/cecilia-helena-payne-gaposchkin ## Summary Cecilia Helena Payne Gaposchkin was born on May 10, 1900, in Wendover [1][2][3][4] and died on December 7, 1979, in Cambridge [1][2][3][5]. She held citizenship in both the United Kingdom and the United States [6]. Her father was Edward John Payne [4], and she had a sibling named Humfry Payne [4]. She practiced agnosticism .Payne Gaposchkin worked as an astronomer, university teacher, and astrophysicist [7]. Her education included attendance at St Paul's Girls' School, Newnham College, Radcliffe College, and Harvard University [5][8][4]. She was employed by Harvard University, the Harvard College Observatory, and the Smithsonian Astrophysical Observatory [7][9]. Her professional field encompassed astronomy, astrophysics, the study of stars, and the Milky Way [5][10].She married Sergei Gaposchkin in 1934 [4]. Her accolades included the Henry Norris Russell Lectureship, the Annie Jump Cannon Award in Astronomy, election as a Fellow of the American Academy of Arts and Sciences, and the Rittenhouse Medal [11][8]. She was a member of the American Academy of Arts and Sciences, the American Philosophical Society, and the American Astronomical Society [12]. The cause of her death was cancer , and she was buried at Pine Hill Cemetery [13]. ## Summary Cecilia Helena Payne Gaposchkin was a British-born American astronomer who pioneered stellar classification and advanced our understanding of stellar composition. She determined that stars are composed primarily of hydrogen and helium, a discovery that revolutionized astrophysics. Payne Gaposchkin worked at Harvard University and the Smithsonian Astrophysical Observatory, where she made significant contributions to stellar spectroscopy. ## Biography - Born: May 10, 1900, in Windsor, Berkshire, United Kingdom - Nationality: British (born), American (naturalized) - Education: - Bachelor of Science in Mathematics from Radcliffe College (1922) - Master of Arts in Astronomy from Radcliffe College (1923) - Doctor of Philosophy in Astronomy from Harvard University (1925) - Known for: Developing the Harvard Classification Scheme for stars and determining their composition - Employer(s): - Harvard College Observatory (1923–1956) - Smithsonian Astrophysical Observatory (1955–1979) - Field(s): Stellar astronomy, astrophysics ## Contributions - **Stellar Classification**: Developed the Harvard Classification Scheme, which categorized stars based on their spectral types, significantly advancing stellar astronomy. - **Stellar Composition**: Discovered that stars are primarily composed of hydrogen and helium, challenging the prevailing belief that stars were made of heavier elements. - **Publications**: Authored numerous papers on stellar spectra, including her groundbreaking 1925 thesis, which laid the foundation for modern stellar astrophysics. - **Teaching**: Taught astronomy at Radcliffe College and Harvard University, mentoring future generations of astronomers. - **Awards**: Received the Annie Jump Cannon Award in Astronomy (1934) and the Henry Norris Russell Lectureship (1956) for her contributions to the field. ## FAQs **What was Cecilia Payne Gaposchkin's most significant contribution to astronomy?** Payne Gaposchkin's most significant contribution was determining that stars are composed primarily of hydrogen and helium, a discovery that fundamentally changed our understanding of stellar composition. **Where did Cecilia Payne Gaposchkin work during her career?** Payne Gaposchkin worked at the Harvard College Observatory from 1923 to 1956 and later at the Smithsonian Astrophysical Observatory from 1955 to 1979. **What educational background did Cecilia Payne Gaposchkin have?** Payne Gaposchkin earned a Bachelor of Science in Mathematics from Radcliffe College in 1922, a Master of Arts in Astronomy from Radcliffe College in 1923, and a Doctor of Philosophy in Astronomy from Harvard University in 1925. **What awards did Cecilia Payne Gaposchkin receive?** Payne Gaposchkin received the Annie Jump Cannon Award in Astronomy in 1934 and the Henry Norris Russell Lectureship in 1956 for her contributions to stellar astronomy. **What was the Harvard Classification Scheme developed by Payne Gaposchkin?** The Harvard Classification Scheme, developed by Payne Gaposchkin, categorized stars based on their spectral types, which helped astronomers understand stellar evolution and composition. ## Why They Matter Cecilia Payne Gaposchkin's work fundamentally altered our understanding of stellar composition and evolution. Her discovery that stars are primarily made of hydrogen and helium challenged the prevailing belief that stars were composed of heavier elements, paving the way for modern astrophysics. Payne Gaposchkin's research laid the groundwork for the field of stellar spectroscopy and influenced generations of astronomers. Her contributions to the Harvard Classification Scheme and her groundbreaking thesis remain foundational to stellar astronomy. Payne Gaposchkin's legacy continues to inspire scientists and students, demonstrating the enduring impact of her pioneering work. ## Notable For - **Pioneering Stellar Spectroscopy**: Developed the Harvard Classification Scheme, which revolutionized stellar astronomy. - **Discovering Stellar Composition**: Determined that stars are primarily composed of hydrogen and helium. - **Annie Jump Cannon Award**: Received the prestigious Annie Jump Cannon Award in Astronomy in 1934. - **Henry Norris Russell Lectureship**: Awarded the Henry Norris Russell Lectureship in 1956 for her contributions to the field. - **Teaching and Mentorship**: Taught astronomy at Radcliffe College and Harvard University, mentoring future astronomers. - **Publications**: Authored numerous influential papers on stellar spectra, including her 1925 thesis. ## Body ### Early Life and Education Cecilia Helena Payne was born on May 10, 1900, in Windsor, Berkshire, United Kingdom. She attended St Paul's Girls' School and later studied at Newnham College, Cambridge, where she earned a Bachelor of Science in Mathematics in 1922. Payne continued her education at Radcliffe College, earning a Master of Arts in Astronomy in 1923. She then pursued a Doctor of Philosophy in Astronomy at Harvard University, where she completed her thesis in 1925. Her thesis, titled "Stellar Atmospheres," analyzed stellar spectra and determined that stars are primarily composed of hydrogen and helium, a groundbreaking discovery that challenged existing theories. ### Career and Research Payne Gaposchkin began her career at the Harvard College Observatory in 1923, where she worked on stellar classification. She developed the Harvard Classification Scheme, which categorized stars based on their spectral types, significantly advancing stellar astronomy. Her research on stellar spectra led to the discovery that stars are primarily made of hydrogen and helium, a finding that revolutionized astrophysics. Payne Gaposchkin's work laid the foundation for modern stellar astrophysics and influenced the field of stellar spectroscopy. ### Teaching and Mentorship Payne Gaposchkin taught astronomy at Radcliffe College and Harvard University, where she mentored future generations of astronomers. Her teaching and mentorship contributed to the development of stellar astronomy and inspired many students to pursue careers in the field. ### Awards and Recognition Payne Gaposchkin received numerous awards and recognition for her contributions to astronomy. She was awarded the Annie Jump Cannon Award in Astronomy in 1934 and the Henry Norris Russell Lectureship in 1956. These awards recognized her pioneering work in stellar spectroscopy and her significant impact on the field. ### Legacy and Influence Cecilia Payne Gaposchkin's legacy continues to influence the field of astronomy. Her discovery of stellar composition and her development of the Harvard Classification Scheme remain foundational to stellar astrophysics. Payne Gaposchkin's work inspired generations of astronomers and demonstrated the enduring impact of her pioneering research. Her contributions to the Smithsonian Astrophysical Observatory and her mentorship of future scientists have left a lasting legacy in the field. ## References 1. Oxford Dictionary of National Biography 2. [Source](https://www.aps.org/publications/apsnews/201501/physicshistory.cfm) 3. BnF authorities 4. American National Biography 5. MacTutor History of Mathematics archive 6. Czech National Authority Database 7. [Source](https://airandspace.si.edu/multimedia-gallery/14038hjpg) 8. [Source](https://siarchives.si.edu/sites/default/files/pdfs/torch/Torch%201976/SIA_000371_1976_07.pdf) 9. Find a Grave 10. [Annie Jump Cannon Award in Astronomy web page](https://aas.org/grants-and-prizes/annie-jump-cannon-award-astronomy) 11. Mathematics Genealogy Project 12. International Standard Name Identifier 13. Virtual International Authority File 14. CiNii Research 15. NNDB 16. SNAC 17. Internet Speculative Fiction Database 18. Freebase Data Dumps. 2013 19. National Archives Identifier 20. CONOR.SI 21. [Source](https://www.facebook.com/groups/709410852896325/permalink/834121697091906/) 22. LIBRIS. 2005 23. Catalogo of the National Library of India