In the tradition of Dava Sobel's Longitude comes sailing expert David Barrie's compelling and dramatic tale of invention and discovery—an eloquent elegy to one of the most important navigational instruments ever created, and the daring mariners who used it to explore, conquer, and map the world.Since its invention in 1759, a mariner's most prized possession has been the sextant. A navigation tool that measures the angle between a celestial object and the horizon, the sextant allowed sailors to pinpoint their exact location at sea.David Barrie chronicles the sextant's development and shows ho... [Read More]
This book has been used for 30 years, updated periodically as needed. More than 20,000 students have successfully learned ocean navigation from these materials and gone on to cross oceans or circumnavigate the globe.This book covers how to find position at sea from timed sextant sights of the sun, moon, stars, and planets plus other routine and special procedures of safe, efficient offshore navigation. No previous navigation experience is required. The only math involved is arithmetic (adding and subtracting angles and times).This is a practical, how-to-do-it book, which also includes clear ex... [Read More]
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 navigation since 2000. It has benefitted from the thoughtful contributions of over 100 students. The aim of Celestial Navigation is to give a sufficient grounding in the subject to determine position at sea using a sextant for fixes on the sun, moon, stars and planets. Furthermore, the material presented will prepare a reader who wishes to pursue a Celestial Navigation Certificate through self-study.The subject requires some comfort with the b... [Read More]
About the ProductA TAMAYA NAUTICAL sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.
Davis #11 Mark 3 Sextant Bundle with #144 Artificial Horizon & #132 Celestial Navigation Quick Reference Chart (3 Items) Mark 3 Sextant - Sometimes referred to as a "lifeboat" sextant, the Mark 3 is an inexpensive training sextant. Yet this model has taken sailors around the world, too! It is full-sized and has sunshades, but no optical magnification to help you find dim celestial bodies. Comes with instruction booklet. Artificial Horizon: Answers the need of every sextant user who cannot depend on a natural sea horizon. Use for backyard practice, finding exact position when inland, and making... [Read More]
Johannes Hevelius used a sextant with a particularly ingenious alidade to provide stellar position measurements of great accuracy. Handcast in solid, lead-free pewter our sextant lapel pin is an original three dimensional sculpture signed by the artist, Jim Clift. Wear a piece of history with this finely crafted pin made entirely in the US. Individually packaged on one of our signature presentation cards, our lapel pins arrive ready for gift giving!
The Mark 25 sextant was developed with more features than the Mark 15. This model features a see through full field Beam Converger mirror and LED illumination that floods the arc and drum with soft light for reading sights taken in darkness. Includes carrying case and instruction booklet.
SEXTANT INVENTION POSTER. This handmade poster print is a large 18x24 inches in size including a white border and is ready to frame for display (frame is shown for demonstration purposes and is not included). The artwork is printed on premium archival acid free card stock (10.3 mil thickness, Epson Enhanced Matte paper) with Ultrachrome archival inks (lightfastness: 100+ years). These posters make great conversational pieces and look fabulous framed as decorative wall art. They also make great gifts. The poster will be quickly and safely shipped to you in a heavy-duty Kraft mailing tube with p... [Read More]
30 Day Money Back Guaranteed! 12-month free replacement warranty for manufacturer's defects! Product Features: High precision, clamshell, exquisite appearance of copper shell, high-grade retro pocket watch style, small size, easy to carry, solid and durable.
30 Day Money Back Guaranteed! 12-month free replacement warranty for manufacturer's defects! Product Features: High precision, clamshell, exquisite appearance of copper shell, high-grade retro pocket watch style, small size, easy to carry, solid and durable.
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Best Captain Ever. for ship boat sailing army police starship captains Mug is available in both 11 oz and 15 oz. Why drink out of an ordinary mug when a custom printed mug is so
Best Captain Ever. for ship boat sailing army police starship captains Mug is available in both 11 oz and 15 oz. Why drink out of an ordinary mug when a custom printed mug is so
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