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Celestial Navigation for Yachtsmen, 13th edition/Астронавигация для яхтсменов, 13-е издание

  • Celestial Navigation for Yachtsmen, 13th edition/Астронавигация для яхтсменов, 13-е издание
Артикул: 00-01022433
в желаниях В наличии
Автор: Mary Blewitt
Издательство: Adlard Coles Nautical (все книги издательства)
Серия: Мореходная астрономия (Все книги серии)
ISBN: 978-1-4729-4287-6
Год: 2017
Формат: 138х216
Переплет: Мягкая обложка
Страниц: 78
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Издание на английском языке
Huge advances in electronic navigation since the original publication of Celestial Navigation have transported offshore navigators to a world of press-button convenience. Traditional navigation skills - and technology-free position finding - are still vital, though, especially when things go wrong, as they will: batteries fail, antennas go overboard, and electronics get wet. Knowledge of celestial navigation is a life-saving emergency skill; it is also a rite of initiation and its practice still a favorite pastime among serious cruisers. A bestseller for over 65 years, Celestial Navigation for Yachtsmen is a model of simplicity and clarity. The only mathematics involved are addition and subtraction, which explains why this book has truly earned its reputation for admirable conciseness and for making a tricky subject easy to understand.

Contents
Key to the Diagrams
Abbreviations
Forewords
Preface
The Theory
The Heavenly Bodies
The Geographical Position (GP)
Declination
Hour Angle (HA)
The Zenith
The Horizon
Altitude
Zenith Distance
The Elevated Pole
Azimuth and Azimuth Angle
Great Circles
Universal Time (UT)
The Position Line
The Meridian Passage
Spherical Triangles
The Intercept
Sextant Altitude and True Altitude
Dip
Refraction
Semi- Diameter
Parallax
The Practice
Almanacs and Tables
A Sun Sight in Winter
Using the Sextant
Recording the Sights
Correcting the Data
Sextant Altitude to True Altitude
Using the Almanac: LHA Sun
Using the Tables
Assuming a Position
Declination
Tabulated Altitude and Azimuth
Plotting the Sight
A Sun Sight in Summer
A Moon Sight
Planet Sights
Meridian Sights
Star Sights
Sidereal Hour Angle
Declinations
Twilight and the Preparation of Star Sights
Selected Stars
Precession and Nutation
Using the Meridian Passage
Polaris
Selecting the Best Position
Notes
Sextants
Sextant Error
Index Error
Side Error
Spherical Triangles
Calculators
Concise Sight Reduction Tables
Practice Sights
Plotting Sheets
Appendices
A Nautical Almanac for 27-29 July 1997
B Nautical Almanac for 6-8 December 1997
C Increments and Corrections
D Altitude Correction Tables 10°-90° for Sun, Stars, Planets
E Altitude Correction Tables 0°-35° for the Moon
Altitude Correction Tables 35°-90° for the Moon
F AP3270 Vol 3: LHA, Dec, Hc, d, Z
G AP3270 Vol 1: Selected Stars
H AP3270 Correction Table 5
Index

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