The Sextant And Its Applications
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The Nautical Sextant
| Author | : W. J. Morris |
| Publisher | : |
| Total Pages | : 246 |
| Release | : 2010-10 |
| Genre | : Reference |
| ISBN | : 9780939837892 |
The Nautical Sextant reveals in pictures, prose, and perspective the experience and knowledge gained by the author from years of acquiring, studying, and restoring sextants from earlier times and from around the world. This fascinating book owes much of its attraction to the expert description and photos of the mechanics of the sextants and their subassemblies. It is also the story of how different manufacturers, in different times and places, solved the same mechanical problems in different ways in order to perfect one of the most accurate mechanical devices ever produced by man. All of this is complemented by an historical overview to the current day, an overview which has never been published until now. The Nautical Sextant will be of particular value not only to navigators, but also to restorers, collectors, students of technology, curators, and sextant dealers. With its bibliography and extensive use of footnotes, this book will certainly become a classic in its field.
How to Use Plastic Sextants with Applications to Metal Sextants and a Review of Sextant Piloting
| Author | : David Burch |
| Publisher | : |
| Total Pages | : 106 |
| Release | : 2010-09 |
| Genre | : Sports & Recreation |
| ISBN | : 9780914025245 |
Sextants are used to measure angular heights of celestial bodies above the horizon to find the latitude and longitude of the observer. They can also be used on land with artificial horizons. Sextants can also be used to find the correct Universal Time by measuring the angular distance between the moon and another body along its path across the zodiac. In coastal waters or on land, sextants can be used for very accurate piloting by measuring the horizontal angles between charted landmarks. The vertical angle of a peak above its baseline determines the distance to it, which, combined with a compass bearing, yields a position fix from just one landmark. The angular dip of an object (island or vessel) below the visible horizon can also be used to determine the distance to it. This booklet explains how to get the best results from plastic sextants, and presents numerical comparisons with similar data from metal sextants. Sextant piloting techniques are also reviewed as they are an ideal use of a plastic sextant.
On the Rochon Micrometer Telescope, and its application to the measurement of distances
| Author | : W. H. JONES (of 62, Charing Cross.) |
| Publisher | : |
| Total Pages | : 16 |
| Release | : 1842 |
| Genre | : |
| ISBN | : |
Taking the Stars
| Author | : Peter Ifland |
| Publisher | : Krieger Publishing Company |
| Total Pages | : 248 |
| Release | : 1998 |
| Genre | : Science |
| ISBN | : |
This text focuses on the history of the development of hand-held celestial navigation instruments, offering descriptions of the tools used. It also includes a glossary of technical terms.
Revue hydrographique
| Author | : |
| Publisher | : |
| Total Pages | : 606 |
| Release | : 1927 |
| Genre | : Electronic journals |
| ISBN | : |
Vols. 2-17 include section: International hydrographic bibliography (title varies).
Celestial Navigation in the GPS Age
| Author | : John Karl |
| Publisher | : Paradise Cay Publications |
| Total Pages | : 292 |
| Release | : 2007 |
| Genre | : Technology & Engineering |
| ISBN | : 9780939837755 |
Many books on celestial navigation take shortcuts in explaining concepts; incorrect diagrams and discussion are often used for the sake of moving the student along quickly. This book tells the true story-and the whole story. It conveys celestial navigation concepts clearly and in the shortest possible time.It's tailored for navigation in the GPS age-a time of computers, calculators, and web resources. Although it covers all of the traditional methods of 'working a sight, ' the primary thrust is using the (under $10) scientific calculator. By using equations that you key into your calculator, this book guides you toward a better understanding of the concepts of celestial navigation.You will learn novel ways to plot lines of position, ways to check your sextant accurately by star sights, and how to tell what time it is from a moon sight. The many appendices are a treasure of references and explanations of abstract ideas. Celestial Navigation is a crucial skill for the offshore navigator to know, this book provides the shortest path to that knowledge.
