Complete On-Board Celestial Navigation 2011-2015

Your All-in-One Navigation Tool Kit. Celestial navigation remains an essential skill for every mariner who ventures out of sight of land. In this era of electronic navigation, it is the perfect backup system, enabling you to determine your position when the GPS malfunctions or your boat loses electrical power.This is the 4th edition of the popular 'single-volume' format for every bit of information you need to understand the process, take sights, and find your location anywhere in the world. Compiled for beginning and experienced celestial navigators alike, and elegantly designed on the assumption that an accuracy of about 1-mile is perfectly adequate for backup navigation, this handy volume replaces $300 worth and thousands of pages of guides, tables, and almanacs.The Complete On-Board Celestial Navigator includes: A clear, concise primer/refresher that explains the entire process Five year nautical almanac (2011 - 2015) for determining precise star, sun, moon, and planet locations at the time of observation Five year star and planet finder and identification Simplified Sight Reduction tables that require no interpolation to produce a fix anywhere in the world.