Anders Johan Lexell [SEP] place of birth
years.
Anders Johan Lexell was born in Turku to Johan Lexell, a local administrative officer, and Madeleine-Catherine Björkegren. At the age of fourteen he enrolled at the University of Åbo and in 1760 received his Doctor of Philosophy degree with a dissertation "Aphorismi mathematico-physici" (academic advisor Jakob Gadolin). In 1763 Lexell moved to Uppsala and worked at Uppsala University as a mathematics lecturer. From 1766 he was a professor of mathematics at the Uppsala Nautical School.
Life St. Petersburg.
In 1762
Anders Johan Lexell
Anders Johan Lexell (24 December 1740 – ) was a Finnish-Swedish astronomer, mathematician, and physicist who spent most of his life in Imperial Russia, where he was known as Andrei Ivanovich Leksel (Андрей Иванович Лексель).
Lexell made important discoveries in polygonometry and celestial mechanics; the latter led to a comet named in his honour. La Grande Encyclopédie states that he was the prominent mathematician of his time who contributed to spherical trigonometry with new and interesting solutions, which he took as a basis