Practical Guide to Celestial Navigation

Practical Guide to Celestial Navigation

Step-by-step instructions for when you've lost the plot

Somerville, Phil

Bloomsbury Publishing PLC

10/2021

160

Dura

Inglês

9781472987587

15 a 20 dias

868

Descrição não disponível.
About the author
Acknowledgements
Introduction
A bit of history
Why bother?
A bit about this book
Chapter 1 The basics
Latitude and longitude
Earth rotation
Great circles
Chapter 2 Foundation of celestial navigation and the geographical position
Geographical position (GP)
Position lines and lines of position
Chapter 3 Defining the geographical position
Declination
Greenwich Hour Angle (GHA)
Obtaining the sun's GP
Proforma introduction
Chapter 4 Sextant corrections
Index error
Height of eye (dip)
Altitude correction
Applying the corrections: example
Chapter 5 The PZX triangle
A bit of background
Chapter 6 The intercept method
Chapter 7 Sight Reduction Tables
The four keys
Chapter 8 Undertaking a full sight reduction
Resources
Sight reduction
Chapter 9 Sun sight reduction - Quick Start and recap
Resources
Completing a sun sight reduction
Chapter 10 Meridian passage
How we take the sight
Worked example
Resources
Chapter 11 Meridian passage - Quick Start and recap
Resources
Completing a meridian passage sight
Chapter 12 Plotting
Sun Run Sun: morning sun sight and meridian passage
Plotting a Sun Run Sun
Sun Run Sun: morning sight and afternoon sight
Sun Run Sun: meridian passage and afternoon sight
Chapter 13 Compass checking
Variation
Deviation
Sight reduction for compass checking
Checking for deviation
Worked example
Chapter 14 Time
Time zones
Chronometer
A practical solution for accurate timekeeping
International Date Line
Chapter 15 Sextant: Practical aspects of sight taking
Overview
Errors
Undertaking a sight
Reading the sextant
Sextant care
Chapter 16 Troubleshooting
Appendices
1. Sun sight proforma
2. Sun sight proforma guide
3. Meridian passage proforma
4. Meridian passage proforma guide
5. Plotting sheet
6. Plotting guide
7. Longitude scale plotting
8. Z versus Zn
9. Assumed longitude
10. Adding and subtracting of 60ths
11. Polaris
Glossary
Index
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manual; workbook; planets; boat; ship; mathematics; angles; calculations; teaching; horizon; students; navigating; step by step; useful; Celestial; stars; sky; Ocean Yachtmaster; qualification; GPS; commercial mariners; RYA; diagrams; complex; accuracy; MCA