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Sidney Dean Townley | |
|---|---|
 Sidney Dean Townley, c.1918 | |
| Born | April 10, 1867 Waukesha, Wisconsin, U.S. |
| Died | March 18, 1946 (aged 78) Stanford, California, U.S. |
| Resting place | Alta Mesa Memorial Park |
| Other names | S.D. Townley |
| Alma mater | University of Wisconsin–Madison, University of Michigan |
| Known for | professor, researcher, astronomer, geodeticist |
| Spouse | Frances May Wright |
Sidney Dean Townley (April 10, 1867 – March 18, 1946) was an American astronomer and geodeticist. He was a professor at Stanford University from 1911 until 1932. Among many other posts, Townley served as an instructor of astronomy at the University of Michigan and the University of California, Berkeley he was also the president of the Astronomical Society of the Pacific in 1916. Throughout the course of his career he published around 100 academic papers and edited many more, he was recognized for his excellent editorial skills.