Celestial Navigation for Yachtsmen

User Review: - Celestial Navigation for Yachtsmen
An excellent book for anyone starting to learn celestial navigation. It provides sufficient theory to explain the basics without baffling anyone able to understand simple arithmetic and geometry. This is the best book on this subject that I have read to date.

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User Review: - Celestial Navigation for Yachtsmen
An excellent and clearly written book.
Easy to follow and understand.
A must for anyone interested in this subject.
Written by an expert for both beginners and experts.
I am delighted I purchased it.

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User Review: - When your GPS dies
This is a neat little book to read if you're serious about finding your position without the benefit of GPS. It's well written and the computations required are basically only addition and subtraction. You can practice using a GPS instrument to check your sights. (What you will find is that you need a lot of practice to get even close!)

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User Review: - "Are the stars out tonight...?"
Celestial navigation, like knots and splices and reading maritime charts and tide tables, is one of the essential sailing skills. Whether you are a daysailer, weekender, blue water cruiser or lone circumnavigator, there WILL come a time when the GPS quits, the Loran won't work, and you're going to say, "Where the &$@!* am I?". If you haven't learned celestial nav at that point you had better be a real quick study or have hired a good estate planning lawyer.

But assuming that Clarence Darrow Dershowitz Kunstler Belli Nizer, Esq. isn't in your crew, Mary Blewitt's book is a good thing to have. Brief, concise, and Ptolemaically simple to understand, Blewitt takes the hocus-pocus out of asking the heavens for directions. The difficulty with learning celestial nav isn't so much the math (as most people want to believe) as it is that modern man is SO far out of touch with the natural world that looking at the night sky is like looking at---something dark and mysterious. However, add a few very basic, easy-to-grasp concepts to your skill set and your Sunfish will suddenly become the Santa Maria.

Knowing celestial navigation will help you to sail anywhere and, even better, to know where you are when you get there. To that end, this book is an invaluable learning tool.

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User Review: - The Truth
Before crossing the Atlantic in 1978 on my 22' sailboat, I read many books on celestial navigation and became convinced that it was an inpenetrable subject and then, on reflection, I realized that that could not be so as so many navigators had had less geometry etc than me. I figured the authors did not really know what they were talking about. And then I came across Prof. Blewett at the Boston Museum of Science, teaching on 10 Wednesday evenings. After the first lecture, on the noon sight, she said, if you your boat is going faster than 20 kts then you don't have to come back for more. That is all you need. She was absolutely right. But I did continue -- I took the course so I could do the fun-and-games of star sights too. I can now teach her course in 45 minutes.

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