A modern approach to astro navigation. It begins with a brief outline of the solar system and then presents a step-by-step guide to finding your position on the... » 

A modern approach to astro navigation. It begins with a brief outline of the solar system and then presents a step-by-step guide to finding your position on the ocean, both with and without a pocket calculator for working out sun and star sights. There are colour illustrations to help novices. «