The very words Astro navigation are often enough to send a cold shudder through even the most experienced boater. The funny thing is that although a lot of Astro jargon has an almost mystical ring about it, most of us know the "e;secrets"e; on which the whole science of Astro navigation is based.RYA Astro Navigation Handbook is ideal for anyone new to celestial navigation, or wanting to update their Astro skills. It is not a textbook or manual - it is simply a book to enable you to "e;just get on and do it"e;. It is the course book for anyone taking an RYA Yachtmaster Ocean Theory Course.Within the book, the reader will find a range of information on:The SextantThe Celestial SphereThe Noon SightMorning & Afternoon SightsPlanetsPolaris
