Harold D. Babcock
Harold Delos Babcock (January 24, 1882 – April 8, 1968) was an American astronomer and is the father of Horace W. Babcock. He was of English and German ancestry. He was born in Edgerton, Wisconsin, before completing high school in Los Angeles and was accepted to the University of California, Berkeley in 1901. He worked at the Mount Wilson Observatory from 1907 until 1948. He specialized in solar spectroscopy and precisely mapped the distribution of magnetic fields over the Sun's surface, working alongside his son. In 1953 he won the Bruce Medal.
- "Harold D. Babcock". www.nndb.com. Retrieved 2018-07-30.
- Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
- Bowen, Ira Sprague. Harold Delos Babcock: 1882—1968 (PDF). National Academy of Sciences.
- Tenn, Joseph S. (2015-10-25). "The Bruce Medalists: Harold D. Babcock". www.phys-astro.sonoma.edu. Retrieved 2018-07-30.
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