This text focuses on the history of the development of hand-held celestial navigation instruments, offering descriptions of the tools used. It also includes a g

Celestial navigation is one of the oldest of the mariner's arts – and one of the most awe-inspiring. It is also essential for every ocean sailor who wants to

This manual has grown out of all the courses given by Dominique Prinet, a certified Instructor-Evaluator for Sail Canada who has been teaching celestial navigat