Lecturer in Mathematics and Physics at Uppsala University in 1767, professor of observational astronomy (Observator) 1773-1796 and professor of Astronomy 1797-1798.
Member of the Royal Academy of Sciences (KVA) in Stockholm in 1771 and member of the Royal Society of Sciences in Uppsala in 1774 (secretary from 1786 and onwards).
A famous calculator of orbits: comets, planets and their satellites.
Prosperin calculated orbits for a total of 84 comets, especially the comets of 1769, 1770, 1771, 1774, 1779 and 1795.
Biography: Biographiskt lexicon (1845)