{ "item_title" : "How to Use a Sextant", "item_author" : [" Miles H. Carver "], "item_description" : "Master the timeless skill of celestial navigation and navigate confidently anywhere on Earth.When GPS fails, a sextant gives sailors, maritime professionals, and enthusiasts a reliable way to determine position using the sun, stars, and horizon.How to Use a Sextant is a practical, step-by-step guide that makes celestial navigation approachable. From understanding the sextant to taking accurate sights and calculating your position, this handbook walks you through the essential skills for self-reliant navigation. How to Use This Booko Operate your sextant safely and accurately from your first observation.o Master measurement techniques: horizon identification, sextant hold, rocking, and recording sights.o Understand celestial navigation fundamentals, including coordinate systems and star movement.o Reduce sights into precise latitude and longitude and practice position plotting.o Apply skills in real-world scenarios, from land practice to offshore passages.o Troubleshoot errors and verify accuracy for confidence at sea. Written for beginners and sailors building backup navigation skills, every concept is explained clearly with practical, real-world examples. With a sextant, accurate time, and the predictable movement of celestial bodies, you can navigate anywhere, no electronics required.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/9/79/825/127/9798251276305_b.jpg", "price_data" : { "retail_price" : "21.40", "online_price" : "21.40", "our_price" : "21.40", "club_price" : "21.40", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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