Olin Eggen
| Olin Eggen | |
|---|---|
 |
|
| Born |
July 9, 1919 Rock County, Wisconsin |
| Died | October 2, 1998 (aged 79) Canberra, Australia |
| Residence | La Serena, Chile |
| Nationality |
 United States
|
| Alma mater | University of Wisconsin–Madison |
Olin Jeuck Eggen (July 9, 1919 – October 2, 1998) was an American astronomer.
Olin Jeuck Eggen was born to Olin Eggen and Bertha Clare Jeuck in the village of Orfordville in Rock County, Wisconsin. Both of his parents were of Norwegian extraction. He graduated from the University of Wisconsin–Madison in 1940. After serving in World War II in the OSS, he returned to the university and received his Ph.D. in astrophysics in 1948.
He became known as one of the best observational astronomers of his time. He is best known for a seminal 1962 paper with Donald Lynden-Bell and Allan Sandage which suggested for the first time that the Milky Way Galaxy had collapsed out of a gas cloud. He first introduced the now-accepted notion of moving groups of stars. He won the Henry Norris Russell Lectureship in 1985.
Over that time he held positions at Lick Observatory (1948–1956), Royal Greenwich Observatory (1956–1961), California Institute of Technology, Mt. Wilson Observatory (1961–1966), Mount Stromlo Observatory, Australian National Observatory (1966–1977), and at Cerro Tololo Inter-American Observatory (1977–1998).
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