John Herschel Scientist

Sir John Frederick William Herschel, 1st Baronet, KH, FRS (7 March 1792 – 11 May 1871)was an English polymath, mathematician, astronomer, chemist, inventor, and experimental photographer, who in some years also did valuable botanical work. He was the son of Mary Baldwin and astronomer William Herschel and the father of twelve children.Herschel originated the use of the Julian day system in astronomy. He named seven moons of Saturn and four moons of Uranus. He made many contributions to the science of photography, and investigated colour blindness and the chemical power of ultraviolet rays.

Personal facts

Birth date	March 07, 1792
Birth place	Buckinghamshire , Slough
Date of death	May 11, 1871
Place of death	Kent , Hawkhurst
Residence	Cape Town , Slough
Education	Eton College St John's College Cambridge
Known for	Photography