Anders Spole Anders Spole Anders Spole (13 June 1630 – 1 August 1699) was a Swedish mathematician and astronomer. He was born at a farm in , the son of blacksmith Per Andersson and his wife Gunilla Persdotter. At the age of twelve he started studying at Jönköpings skola and was sent to the University of Greifswald in 1652. After three years of studies he continued at other universities in Prussia and Saxony, until his return to Barnarp in 1655, where he started preaching in the local church. He continued to study mathematics at Uppsala University, while at the same time being
Christian Mayer (astronomer) able to continue his astronomical observations and studies. He applied for and was granted in December 1765 a Fellowship of the Royal Society. He is most noted for pioneering the study of binary stars, although his equipment was ill-suitable for distinguishing between true binaries and coincident star alignments. In 1777-78 he compiled a catalog of 80 double stars, which he published in 1781. During his lifetime he became a member of numerous learned societies. He died in Heidelberg. Christian Mayer (astronomer) Christian Mayer (August 20, 1719 – April 16, 1783) was a Czech-German Catholic priest, astronomer and teacher. He was