Free eBooks Long Term Almanac 2000-2050: For The Sun And Selected Stars With Concise Sight Reduction Tables, 2nd Edition (Hardcover) Available To Downloads
Nautical almanac data for the sun and selected stars valid until 2050, plus easy to use, concise sight reduction and altitude correction tables. Plus work forms to make the process even easier. A concise one-book solution for celestial navigation. It takes a few extra steps to get GHA and dec with the Long Term Almanac, since it does it without the usual 10 pounds of reference books, but with practice it takes just a few minutes longer than normal almanac look up. All the information you need for: • Finding your position from timed sextant sights • Checking your compass by celestial bearings • Computing great circle routes to your destination
Hardcover: 120 pages
Publisher: Starpath Publications; Hardcover edition (December 18, 2012)
Language: English
ISBN-10: 0914025376
ISBN-13: 978-0914025375
Product Dimensions: 7 x 0.3 x 10 inches
Shipping Weight: 14.4 ounces (View shipping rates and policies)
Average Customer Review: 4.5 out of 5 stars See all reviews (20 customer reviews)
Best Sellers Rank: #975,660 in Books (See Top 100 in Books) #459 in Books > Reference > Almanacs & Yearbooks #2003 in Books > Science & Math > Astronomy & Space Science > Astronomy #6581 in Books > Textbooks > Reference
If you are reading this I assume you are an aficionado of the venerable arts of navigation. No doubt you own a sextant or two, and maybe a chronometer, and a few other antique goodies like I do. But in this day and age these things are no longer necessary for navigation. Not even in emergency situations. Not when everyone has a cell phone with GPS built in. You would be better off finding a solar charger for your cell phone to cope with emergencies than relying on celestial navigation with a sextant and a set of tables. If it gets so bad you can't get any GPS cell phone to work, you are in deep, and you had better be able to figure out how to navigate like the ancient Polynesians.... with no special equipment... which perhaps you already have done because you are a student of the old art or you wouldn't be reading about this almanac.For those of us who still keep the old art alive out of a sense of curiosity or personal enjoyment we need a solution to keeping the necessary data around to reduce our sights. This book is a good step in that direction. It is easy to skip buying a new Nautical Almanac each year just so you can do a handful of practice sights. With this long term almanac you won't have to worry about not having the data on hand.However this almanac's method does allow a certain amount of error to creep in, which is pointed out in the book. So be it. I am happy that someone has gone tot he trouble to create a long term solution, and the errors are small.If you want or really need more precision; or if you are just learning to handle a sextant and want to know that the errors are introduced by you, the operator, not the books, you will have to buy a current nautical almanac and the appropriate sight reduction tables.
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