Sir John Frederick William Herschel, 1st Baronet KH, FRS (March 7, 1792 – May 11, 1871) "Herschel | Sir | John Frederick William | 1792-1871 | astronomer" (biography), NAHSTE project, University of Edinburgh, NAHSTE-JHerschel. was an English mathematician, astronomer, chemist, and experimental photographer/inventor, who in some years also did valuable botanical work. He was the son of astronomer Sir Friedrich Wilhelm Herschel and the father of 12 children.
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