|Died||12 June 1835|
|Occupation||astronomical instrument maker|
Troughton was born at Corney, Cumberland, the youngest of six children to Francis Troughton, a husbandman on a farm, and his wife, Mary Stable. Originally raised to tend animals he went to London in 1773 He then served an apprenticeship with his uncle, John Troughton (b.c.1716) alongside his elder brother, also John Troughton, and in 1779 he became his business partner and soon established himself as the top maker of navigational, surveying and astronomical instruments in Britain. They were based at 136 Fleet Street in central London. Their shop was called the "Sign of the Orrery".
In 1795 he delivered what is now known as the Troughton Equatorial Telescope to the Armagh Observatory, a 2-inch aperture refractor telescope mounted equatorially, and its first major instrument since its founding in 1790 (It survived into the 21st century also). He created the Groombridge Transit Circle in 1806, which Stephen Groombridge used to compile his star catalogue. He did not merely build instruments, but designed and invented new ones.
Troughton was involved in a lawsuit against Sir James South, who was dissatisfied with the quality of an equatorial mounting that Troughton made for him. Troughton sued for payment, and with informal legal counsel provided by Richard Sheepshanks, he prevailed.
Troughton was color blind.
- "Troughton biography". MacTutor History of Mathematics archive.
- Skempton, A. W.; Brown, Joyce (1973). "John and Edward Troughton, Mathematical Instrument Makers". Notes and Records of the Royal Society of London. 27 (2): 233–249. doi:10.1098/rsnr.1973.0018. JSTOR 531000.
- "Armagh Observatory".
- "Groombridge Transit Circle, 1820".
- "Lists of Royal Society Fellows 1660-2007" (PDF). London: The Royal Society. Retrieved 18 July 2010.
- "The South-Troughton quarrel". MacTutor History of Mathematics archive.
- Paths of Glory. Friends of Kensal Green Cemetery. 1997. p. 100.
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