Leon Campbell (1881–May 10, 1951) was an American astronomer. Year 1881 ( MDCCCLXXXI) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Events 1291 - Scottish Nobles recognize the authority of Edward I of England. Year 1951 ( MCMLI) was a Common year starting on Monday. Events of 1951 January The United States of America —commonly referred to as the Historically Astronomy was more concerned with the classification and description of phenomena in the sky while Astrophysics attempted to explain these phenomena
He is noted for his observations of variable stars at the Harvard College Observatory. For the astronomical object see Variable star. Variable Star is a 2006 novel written by Spider Robinson The Harvard College Observatory (or HCO is an institution managing a complex of buildings and multiple instruments used for astronomical research by the Department of Astronomy He served as Recorder of Observations for the AAVSO from its earliest days in 1915, and continued until his retirement in the 1940s. Since its founding in 1911 the American Association of Variable Star Observers (AAVSO has coordinated collected evaluated analyzed published and archived Variable star Year 1915 ( MCMXV) was a Common year starting on Friday (link will display the full calendar of the Gregorian calendar (or a Common year The 1940s decade ran from 1940 to 1949 Events and trends The 1940s was a period between the radical 1930s and the conservative 1950s which also leads the period to be (The title was later changed to Director of the AAVSO. ) He also published a number of papers and a pair of books on the topic of variable stars.
Awards and honors
- Pickering Memorial Astronomer, circa 1931.
- AAVSO Merit Award, 1944.
- Campbell crater on the Moon is co-named for him and William W. Campbell. Campbell is a large lunar crater that is located in the Northern hemisphere on the far side of the Moon. William Wallace Campbell ( April 11 1862 &ndash June 14 1938) was an American Astronomer.
Bibliography
- Campbell, Leon and Jacchia, Luigi Giuseppe, "The story of variable stars", Philadelphia, The Blakiston company, 1941.
- Campbell, Leon, "Studies of Long Period Variables", Cambridge, MA, AAVSO, 1955.
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