Born Hattula, (Finland), 1724
Died Pemar, (Finland), 25 April 1803
Anders Planman observed the transits of Venus in 1761 and 1769 for the Swedish Academy of Sciences. Planman, the son of lieutenant Pehr Planman and Ingeborg Leufstadius, was born in a Swedish family in Finland (then part of Sweden). He studied in åbo (Turku) and Uppsala, where he became associate professor (docent) in astronomy in 1758. In 1763, Planman became a professor of physics in åbo, where he remained until his retirement in 1801. He was a member of the Science Society at Uppsala (Vetenskapssocieteten) and from 1767 of the Royal Swedish Academy of Sciences.
Planman's most important contribution in the field of astronomy came with the transits of Venus in 1761 and 1769, which he observed in the far north of Finland. Planman's expeditions were financed by the Academy of Sciences in Stockholm, and they were part of a larger effort by Swedish astronomers to contribute to the measurement of the solar parallax, which...
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Selected References
Amelin, Olle (1995–1997). “Anders Planman.” Svenskt biografiskt lexikon. Vol. 29. Stockholm: Svenskt biografiskt lexicon.
Lindroth, Sten (1967). Kungl. Svenska vetenskapsakademiens historia. 2 Vols. Stockholm: Almqvist and Wiksell.
Woolf, Harry S. (1959). The Transits of Venus: A Study of Eighteenth‐Century Science. Princeton, New Jersey: Princeton University Press.
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Widmalm, S. (2007). Planman, Anders. In: Hockey, T., et al. The Biographical Encyclopedia of Astronomers. Springer, New York, NY. https://doi.org/10.1007/978-0-387-30400-7_1097
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