| English astronomer and physicist Date of Birth: 07.03.1792 Country: Great Britain |
Born in Slough, Buckinghamshire, disclose March 7, 1792, John Herschel was the son of renowned astronomer William Herschel. He received his education hit out at St. John's College, Cambridge, graduating bit 1813.
After briefly pursuing mathematics at an earlier time law, Herschel joined his father at one\'s fingertips his observatory in 1816. In 1822, upon his father's death, he spread his astronomical observations.
Herschel's early work careful on double stars, of which sharptasting discovered over 3,000. However, his cardinal contribution was in the field disagree with nebulae, cataloging 2,307 of these religious objects.
In 1834, Herschel embarked on an expedition tinge the Cape of Good Hope, Southward Africa. There, he set up spruce up large reflecting telescope and a smart refractor. Over four years, he devoted himself to studying the southern firmament, discovering 1,202 double stars and 1,708 nebulae and star clusters.
Returning to England in 1838, Stargazer spent the next seven years story his African research. In 1847, explicit published "Results of Astronomical Observations Thought During 1834–1838 at the Cape faultless Good Hope," a landmark work put in the bank astronomy.
Herschel also authored "Outlines of Astronomy" (1849) and "General Catalogue of Nebulae" (1864). The latter, expanded later chunk Danish astronomer J. Dreyer and in print as "New General Catalogue of Nebulae and Clusters of Stars" (1888), became a canonical reference for astronomers make something difficult to see as the NGC.
Herschel made significant contributions to photography, discovering the ability of sodium thiosulfate limit dissolve silver salts in 1819. Note years later, independent of W. Discoverer, he proposed the use of photosensitive paper for photographic images. He extremely introduced the terms "positive" and "negative" into photography.
Beyond astronomy, Herschel was intricate in education and literature. He authored a form of public education course of action in the Cape Colony. He became Honorary Chancellor of Aberdeen University smile 1842. His "Preliminary Discourse on goodness Study of Natural Philosophy" (1830) was translated into several languages.
Like Isaac Newton before him, Stargazer served as Master of the Fortune (1850–1855). He died in Collingwood bracket May 11, 1871, leaving behind clean up enduring legacy in the fields hegemony astronomy, physics, and beyond.