Interplanetary Navigation

G.M. Clemence, Interplanetary Navigation, Offprint, Proceedings of the IRE, Volume 48 Issue 4. Original wrappers. 11X8, 4pp. Good, solid copy. Offprints from the IRE are uncommon.__+__ Summary: The similarities and differences between interplanetary navigation and navigation on the earth are discussed. It is shown that in interplanetary space, position-fixing can be accomplished by a simple extension of the techniques already familiar to all navigators; but, when very close to the destination, other techniques are more suitable.__+__ Gerald Maurice Clemence (1908 1974) , American astronomer. Inspired by the life and work of Simon Newcomb, his career paralleled the huge advances in astronomy brought about by the advent of the electronic computer. Clemence did much to revive the prestige of the U.S. Nautical Almanac Office.--Wkikpedia.