The Complete On-Board Celestial Navigator

Author(s): George C Bennett

Nautical - Seamanship

This work is an essential backup resource when the electronics fail. This is the most concise navigation guide available; replaces $300 worth of references. It includes instructions for novices and rusty navigators.


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Dr. George G. Bennett owns and directs CN Systems, which produces navigational calculator and computer software. He has navigated boats in a number of major ocean races, received numerous honors, and taught navigation for 20 years.

Part One: How to Work a Sight--An OverviewHow To Work a Sight--An Overview1 Introduction2 Scope and Contents3 Equipment3.1 SextantPerpendicularity ErrorSide ErrorIndex Error3.2 Clocks4 Almanac Data4.1 Stars and Aries4.2 Sun and Planets4.3 Moon4.4 Summary4.5 Alternative Interpolation Method5 Planning and Observations5.1 Planning5.2 Sextant Observations5.3 Identification5.4 Observation Methods5.5 Sunrise, Sunset, and Twilight6 Sextant Altitude Corrections6.1 Dip Correction6.2 Index Correction6.3 Star and Planet Corrections6.4 Sun Correction6.5 Moon Correction6.6 Summary7 The Marcq St. Hilaire Method7.1 Intercept7.2 AzimuthAzimuth TablesWeir Diagrams7.3 The Position Fix8 Amplitudes9 Polaris9.1 Azimuth9.2 Latitude10 Sun Observations10.1 Running Fixes10.2 Meridian Observations11 Sight Reduction at Very Low AltitudesPart Two: Tables, Examples, and FormsConstants and FormulasGHA Aries and Star EphemeridesSun and Planet EphemeridesSun and Planet Interpolation and Altitude CorrectionsMoon EphemeridesMoon Declination InterpolationMoon (GHA-GMT) InterpolationMoon Altitude CorrectionsSextant Altitude Analysis ExamplePrediction and IdentificationLAT of Sunrise and SunsetLAT of Civil TwilightSight Reduction TablesAzimuth TablesWeir DiagramsPolaris (Latitude and Azimuth)Change of Altitude in 5 Minutes of TimeSight Reduction Example: Stars, Planet, and MoonRunning Fix Example: SunAlternative Interpolation Table (Calculator)Form: Sextant Altitude AnalysisForm: Sight ReductionForm: Sight Reduction (Plot)The Navigational StarsIndexConversion of Time to Arc

General Fields

  • : 9780071485692
  • : mcgraw
  • : mcgraw
  • : December 2006
  • : 274mm X 221mm X 10mm
  • : United States
  • : books

Special Fields

  • : George C Bennett
  • : Paperback
  • : Revised edition
  • : 623.89
  • : 176
  • : ill