The 13th edition of this bestselling book is proof of the success of Mary Blewitt's concise and clear style in explaining a particularly difficult skill, and it has been the bible for many generations of ocean navigators. Since this book was first published, the huge advances in electronic navigation have transported most offshore navigators to a world of press-button convenience. However, there is still a vital need for traditional skills when things go wrong: batteries can fail, aerials go overboard, and electronics have been known to get wet. A bestseller for over 65 years, Celestial…mehr
The 13th edition of this bestselling book is proof of the success of Mary Blewitt's concise and clear style in explaining a particularly difficult skill, and it has been the bible for many generations of ocean navigators. Since this book was first published, the huge advances in electronic navigation have transported most offshore navigators to a world of press-button convenience. However, there is still a vital need for traditional skills when things go wrong: batteries can fail, aerials go overboard, and electronics have been known to get wet. A bestseller for over 65 years, Celestial Navigation for Yachtsmen is a model of simplicity and clarity. The worked examples require only straightforward 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. This edition has been thoroughly revised by Andy Du Port, the highly respected ex-editor of Reeds Almanacs. 'The "bible" of navigation for generations of yachtsmen... worth its weight in gold' SailingHinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
The late Mary Blewitt, better known by her married name of Mary Pera, was involved with sailing for most of her life. Formerly a top ocean racing navigator as well as secretary of the Royal Ocean Racing Club for a number of years, she was also Chairman of the ISAF racing rules committee, and an international judge and jury chairman at major championships and regattas. Andy Du Port was an editor of Reeds Almanacs for many years. He is also the author of The Yacht Owner's Manual, published by Adlard Coles Nautical.
Inhaltsangabe
ForewordsPrefaceEditor's NoteThe Theory The Heavenly Bodies The Geographical Position (GP) Declination Hour Angle The Zenith The Horizon Altitude Zenith Distance The Elevated Pole Azimuth and Azimuth Angle Great Circles Universal Time (UT) The Position Line Spherical Triangles The Intercept Sextant Altitude and Observed Altitude Dip; Refraction; Semi-Diameter; ParallaxThe Practice Almanacs and Tables Almanacs; Sight Reduction Tables A Sun Sight in Winter Using the Sextant; Recording the Sights; Correcting the Data; Using the Almanac; Using the Tables; Plotting the Sight A Sun Sight in Summer A Moon Sight A Running Fix Planet Sights Meridian Sights Star Sights Sidereal Hour Angle; Declinations; Twilight and Preparation of Star Sights; Using the Meridian Passage Pole Star Sights Notes Sextants Calculators "Short" Sight Reduction Tables Practice Sights Plotting Sheets Appendices A. Nautical Almanac, 1990, for December 6, 7, 8 B. Nautical Almanac, 1990, for July 15, 16, 17 C. Nautical Almanac, Increments and Corrections for 56m and 57m D. Nautical Almanac, Altitude Correction Tables, 10 degrees - 90 degrees - Sun, Stars, Planets E. Nautical Almanac, Altitude Correction Tables, 0 degrees - 35 degrees - Moon and 35 degrees - 90 degrees - Moon F. H.O. 249 Vol. III for Lat. 52 degrees, Declination (15 degrees to 29 degrees) CONTRARY name to Latitude, LHA 69 to 0 G. H.O. 249 Vol. II or III, Table 5 H. Nautical Almanac, 1993, for October 10, 11, 12 I. H.O. 249 Vol. I, Epoch 1995.0, for LAT 33 degrees N, LHA Aries 0 to 179 Index
ForewordsPrefaceEditor's NoteThe Theory The Heavenly Bodies The Geographical Position (GP) Declination Hour Angle The Zenith The Horizon Altitude Zenith Distance The Elevated Pole Azimuth and Azimuth Angle Great Circles Universal Time (UT) The Position Line Spherical Triangles The Intercept Sextant Altitude and Observed Altitude Dip; Refraction; Semi-Diameter; ParallaxThe Practice Almanacs and Tables Almanacs; Sight Reduction Tables A Sun Sight in Winter Using the Sextant; Recording the Sights; Correcting the Data; Using the Almanac; Using the Tables; Plotting the Sight A Sun Sight in Summer A Moon Sight A Running Fix Planet Sights Meridian Sights Star Sights Sidereal Hour Angle; Declinations; Twilight and Preparation of Star Sights; Using the Meridian Passage Pole Star Sights Notes Sextants Calculators "Short" Sight Reduction Tables Practice Sights Plotting Sheets Appendices A. Nautical Almanac, 1990, for December 6, 7, 8 B. Nautical Almanac, 1990, for July 15, 16, 17 C. Nautical Almanac, Increments and Corrections for 56m and 57m D. Nautical Almanac, Altitude Correction Tables, 10 degrees - 90 degrees - Sun, Stars, Planets E. Nautical Almanac, Altitude Correction Tables, 0 degrees - 35 degrees - Moon and 35 degrees - 90 degrees - Moon F. H.O. 249 Vol. III for Lat. 52 degrees, Declination (15 degrees to 29 degrees) CONTRARY name to Latitude, LHA 69 to 0 G. H.O. 249 Vol. II or III, Table 5 H. Nautical Almanac, 1993, for October 10, 11, 12 I. H.O. 249 Vol. I, Epoch 1995.0, for LAT 33 degrees N, LHA Aries 0 to 179 Index
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