Career
According to his memorial at Street Peter & Street Paul"s Church, Dinton, it was "a work universally adopted by the naval service". Raper died on 6 January 1859 at Torquay in Devon, England.
According to his memorial at Street Peter & Street Paul"s Church, Dinton, it was "a work universally adopted by the naval service". Raper died on 6 January 1859 at Torquay in Devon, England.
Amongst his achievements was his quantification of the unreliability of a key longitudinal measurement, lunar distance, when taken at different times. Raper is primarily remembered, however, for his seminal work The Practice of Navigation and Nautical Astronomy, for which he was awarded the Founder"s Medal of the Royal Geographical Society in 1841.