Anders Planman also calculated the correct longitude for six locations on the way, among them Kajaani, Mikkeli and Hämeenlinna. He could do this partly because he used surveying tools for his astronomical observations; these were some of the most exact contemporary measuring tools. The minor planet 2639 Planman is named after Anders Planman. Anders Planman Anders Planman (1724 – 25 April 1803) was a Finnish astronomer, professor of physics and mathematician. He was one of the first people to make systematical astronomical observations in Finland. Planman came from a Swedish-speaking Finnish family and his father was a lieutenant. He studied at the
George Bishop (astronomer) George Bishop (astronomer) George Bishop (Leicester, 21 August 1785 – 14 June 1861), was a noted English astronomer of the nineteenth century. At the age of eighteen Bishop entered a British wine-making business in London, subsequently becoming its proprietor, during his tenure at which the business was so successful that its excise returns were said to exhibit half of all home-made wines as of his manufacture. Bishop's scientific career began with his admission to the Royal Astronomical Society in 1830, funded by the money he had earned from the wine business. He took lessons in algebra from Augustus De Morgan,