Description
Astronavigasjon is a Norwegian textbook that provides a thorough and practical introduction to astronomical navigation for seafarers and sailors. Written by Ivan Dedeken, the book explains how to determine position using celestial bodies such as the sun, moon, planets and stars. The content is adapted for practical use at sea, with explanations of the sextant, nautical almanacs and calculation methods, presented in an educational and understandable way. The second edition has been further developed with clearer explanations and improved structure, and serves as both a textbook and reference work. Astronavigation is particularly relevant for navigators and long-distance sailors who want solid expertise in traditional navigation, either as the main method or as a safe backup to electronic systems.





