Donald Osterbrock

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Donald Edward Osterbrock (born 13 June 1924 in Cincinnati, died January 11, 2007 in Santa Cruz) is an American astronomer.

He studied at the University of Chicago, where he earned B.A. in physics (1947), MS (1949) and doctorate in astronomy (1952). The promoter of his dissertation was Subramanyan Chandrasekhar. He worked at Princeton University, the University of Wisconsin, the California Institute of Technology, and the University of California, Santa Cruz, where he headed the Licka Observatory from 1973-1982.

Initially he was involved in spectroscopic observations of active galaxies. While working at the Yerkes Observatory, together with William W. Morgan and Stewart Sharpless, they proposed the existence of spiral arms of the Milky Way. Later he was involved in the physics of ionized gases, his research enabled him to understand the functioning of planetary nebulae and emission nebulae.

He also published works on the history of astronomy, including Astronomers, including Walter Baade (A Life in Astrophysics). Awards and prizes Bibliography

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