This DVD is a complete Astro Navigation training programme in its own right. Powerful graphics make it easy to understand the celestial sphere, whilst live action shows you how to check, adjust and use a sextant. Learn every stage of taking a sight, using the tables and plotting fixes from the sun, stars and planets. A selection of worked examples clearly demonstrate each stage of the process and detailed instructions on the use of the tables are included. Connect to a printer a you can print 80 exercises to practice you new found knowledge.