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from its earliest days in 1915, and continued until his retirement in the 1940s. (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.
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Campbell, Leon and
Jacchia, Luigi Giuseppe, "The story of variable stars", Philadelphia, The Blakiston company, 1941.
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Campbell, Leon, "Studies of Long Period
Variables", Cambridge, MA, AAVSO, 1955.
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Recipient of honorary degree of Master of Arts from
Harvard University, 1949.
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29:(January 20, 1881 – May 10, 1951) was an American
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72:is co-named for him and
65:AAVSO Merit Award, 1944.
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235:American astronomers
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16:American astronomer
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53:Awards and honors
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