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Here is a publishing innovation. Everything the sailor definitely will need is in the book. All the other data he or she might need is freely available to copy from the website.
This book is written for real and aspiring bluewater sailors who know that they should be able to navigate by the sun and stars but find that existing texts and data sources are difficult, incomplete or very expensive. "Celestial Navigation …when your GPS fails!" is written by a yachtsman with a deep understanding of practical astronomy, twenty years of teaching and a lifetime on water.
This book contains everything the sailor needs. There is complete instruction on how to use a sextant, on making astronomical observations and how to do the calculations with or without the forms provided. All the tables needed to make the calculations are available. You do not need any further almanacs or tables for the next ten years!
This book is for real and aspiring blue water sailors, those who leave the sight of land and rely on various electronic devices for navigation. When satellite navigation fails because of seawater in the electronics or just plain battery failure then being lost at sea is a life-threatening situation, especially when night falls. A sailor, undertaking celestial navigation, needs a sextant and a watch, but also knowledge of how to do celestial navigation and how to use the appropriate tables and make the calculations.
This book contains everything you need apart from the sextant and a watch. A calculator is handy but not essential. There is complete instruction on how to use a sextant, on making astronomical observations and on how to do the calculations with or without the forms. There are all tables and the forms needed to make the calculations, here and on the associated website. You do not need any further almanacs or tables for the next ten years!
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