Alfred Fowler, FRS, an English astronomer, born on 22 March, 1868 (died 24 June 1940). He was an expert in spectroscopy, being one of the first to determine that the temperature of sunspots was cooler than that of surrounding regions. The crater Fowler on the Moon (jointly with Ralph H. Fowler).
Reference: http://www.nndb.com/people/613/000169106/, Retrieved 3 January, 2012; http://en.m.wikipedia.org/wiki/Alfred_Fowler, Retrieved 3 January, 2012
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