Precision Celestial Navigation Experiments

Abstract

The following report, here printed in a slightly abridged form, was prepared under a contract with the U.S. Office of Naval Research and covers the results of research at Key West, Florida, and near Newport, Rhode Island, as well as afloat during the period January 1958 to May 1961. It has so far been unpublished. It describes the results of investigations into the use of high-magnification sextant telescopes and makes recommendations for the improvement of marine sextants and their use. It is here published with a prefatory note and final general comment by Mr. D. H. Sadler, Superintendent of H.M. Nautical Almanac Office.