The Complete On-board Celestial Navigator Includes 2003-2007 Nautical Almanac

Author(s): George G. Bennett

Nautical - Seamanship

The perfect backup navigation system for the serious cruiser in a GPS era, this all-in-one tool kit supplies everything a celestial navigator needs except the sextant. "The Complete On-Board Celestial Navigator" replaces $300 worth of guides and almanacs traditionally required by celestial navigators and includes a star finder; a five-year (2003-2007) nautical almanac for determining precise star, sun, moon, or planet locations at the time of sighting; and sight reduction tables for crunching the numbers and producing the fix. Designed with the novice or rusty celestial navigator in mind, it even includes a celestial navigation primer.


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Dr. George G. Bennett is the owner and director of CN Systems, which produces navigational calculator and computer software. The former head of the School of Surveying, Faculty of Engineering, at the University of New South Wales, Australia, he holds graduate degrees in surveying and geography. He has written extensively on geodesy, navigation, and surveying in international journals. An elected Fellow of the Institution of Surveyors and the Institute of Navigation, he has served as a visiting scientist at Her Majesty's Nautical Almanac Office at the Royal Observatory. He has sailed in nine Sydney - Hobart races as a navigator and has taught navigation at the Cruising Yacht Club of Australia and the Royal Sydney Yacht Squadron.

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 Tables, Examples, and Forms 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

General Fields

  • : 9780071396578
  • : mcgraw
  • : mcgraw
  • : January 2003
  • : 279mm X 241mm X 12mm
  • : United Kingdom
  • : books

Special Fields

  • : George G. Bennett
  • : Paperback
  • : 2nd Revised edition
  • : 623.89
  • : 176
  • : 25 line illustrations