Overview

Your All-in-One Navigation Tool KitCelestial navigation remains an essential skill for every mariner who ventures out of sight of land. In this era of electronic navigation, it is the perfect backup system, enabling you to determine your position when the GPS malfunctions or your boat loses electrical power.Here in one volume is every bit of information you need to understand the process, take sights, and find your location anywhere in the world. Compiled for beginning and experienced celestial navigators alike, and elegantly designed on the assumption that 1-mile precision is perfectly adequate for backup navigation, this handy volume replaces $300 worth and thousands of pages of guides, tables, and almanacs. The Complete On-Board Celestial Navigator includes: A clear, concise primer/refresher that explains the entire processA five-year nautical almanac (2007–2011) for determining precise star, sun, moon, and planet locations at the time of sightingA star finderSight reduction tables for crunching the numbers and producing a fix anywhere in the world ""The only complete self-contained work available. When your electronic navigation fails, 'steering by the stars' will guide you safely to your destination.""—Sydney Afloat (Australia)

Full Product Details

Author:   George Bennett
Publisher:   International Marine Publishing Co
Imprint:   International Marine Publishing Co
Edition:   Revised edition
Dimensions:   Width: 22.10cm , Height: 1.10cm , Length: 27.40cm
Weight:   0.517kg
ISBN:  

9780071485692

ISBN 10:   0071485694
Pages:   176
Publication Date:   16 January 2007
Audience:   General/trade ,  General
Replaced By:   9780071485692
Format:   Spiral bound
Publisher's Status:   Out of Print
Availability:   In Print  
Limited stock is available. It will be ordered for you and shipped pending supplier's limited stock.

Table of Contents

Part One: How to Work a Sight—An Overview How To Work a Sight—An Overview 1 Introduction 2 Scope and Contents 3 Equipment 3.1 Sextant Perpendicularity Error Side Error Index Error 3.2 Clocks 4 Almanac Data 4.1 Stars and Aries 4.2 Sun and Planets 4.3 Moon 4.4 Summary 4.5 Alternative Interpolation Method 5 Planning and Observations 5.1 Planning 5.2 Sextant Observations 5.3 Identification 5.4 Observation Methods 5.5 Sunrise, Sunset, and Twilight 6 Sextant Altitude Corrections 6.1 Dip Correction 6.2 Index Correction 6.3 Star and Planet Corrections 6.4 Sun Correction 6.5 Moon Correction 6.6 Summary 7 The Marcq St. Hilaire Method 7.1 Intercept 7.2 Azimuth Azimuth Tables Weir Diagrams 7.3 The Position Fix 8 Amplitudes 9 Polaris 9.1 Azimuth 9.2 Latitude 10 Sun Observations 10.1 Running Fixes 10.2 Meridian Observations 11 Sight Reduction at Very Low Altitudes Part Two: Tables, Examples, and Forms Constants and Formulas GHA Aries and Star Ephemerides Sun and Planet Ephemerides Sun and Planet Interpolation and Altitude Corrections Moon Ephemerides Moon Declination Interpolation Moon (GHA-GMT) Interpolation Moon Altitude Corrections Sextant Altitude Analysis Example Prediction and Identification LAT of Sunrise and Sunset LAT of Civil Twilight Sight Reduction Tables Azimuth Tables Weir Diagrams Polaris (Latitude and Azimuth) Change of Altitude in 5 Minutes of Time Sight Reduction Example: Stars, Planet, and Moon Running Fix Example: Sun Alternative Interpolation Table (Calculator) Form: Sextant Altitude Analysis Form: Sight Reduction Form: Sight Reduction (Plot) The Navigational Stars Index Conversion of Time to Arc

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Author Information

Dr. George G. Bennett is the former head of The School of Surveying, Faculty of Engineering at the University of New South Wales. He holds a PhD in geography/surveying and has published extensively in international journals in the fields of surveying and navigation. He has served as a visiting scientist at HM Nautical Almanac Office at the Royal Greenwich Observatory. He owns and directs a company producing navigational software sold in the U.S. and Australia. He is a fellow of the Institution of Surveyors and Institute of Navigation. An experienced sailor, he teaches navigation at the Cruising Yacht Club of Australia and has sailed as navigator in nine Sydney-Hobart races. HOMETOWN: Mosman, NSW, Australia

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