Frank Elmore Ross
| Frank Elmore Ross | |
|---|---|
| Born |
April 2, 1874 San Francisco, California |
| Died | September 21, 1960 (aged 86) Altadena, California |
| Nationality |
 American
|
| Fields | Astronomy |
| Institutions |
Yerkes Observatory International Latitude Observatory |
| Alma mater | University of California |
Frank Elmore Ross (April 2, 1874 – September 21, 1960) was an American astronomer and physicist. He was born in San Francisco, California and died in Altadena, California. In 1901 he received his doctorate from the University of California. In 1905 he became director of the International Latitude Observatory station at Gaithersburg, Maryland. In 1915 he became a physicist for Eastman Kodak Company at Rochester, New York. He accepted a position at the Yerkes Observatory in 1924 and worked there until his retirement in 1939.
His first important work was the calculation of the first reliable orbit of Saturn's moon Phoebe in 1905, and he also calculated orbits for Jupiter's satellites Himalia and Elara. When working for Eastman Kodak he investigated photographic emulsions and the design of wide-angle lenses for astronomical use.
At Yerkes Observatory he was the successor to the late E. E. Barnard, inheriting Barnard's collection of photographic plates. Ross decided to repeat the same series of images and compare the results with a blink comparator. In doing so, he discovered 379 new variable stars and over 1000 stars of high proper motion. Some of the high–proper motion stars turned out to be quite nearby, and many of these stars (such as Ross 154) are still widely known by the catalog number he gave them.
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