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Astronavigation: From Columbus to William Barentsz for the Modern Sailor - Couverture souple

Werf, Siebren Van Der

 
9789086163427: Astronavigation: From Columbus to William Barentsz for the Modern Sailor
Couverture souple
ISBN 10 : 9086163424 ISBN 13 : 9789086163427
Editeur : Lanasta, 2018

Synopsis

Taking the height of the pole
For the sixteenth century navigator this meant finding your latitude. Five centuries ago, to the year, the first nautical handbooks on celestial navigation appeared in print with declination tables written for 1517-1520. They explained how you can find your position taking the height of the sun or the Pole Star. And which course to steer to find your port. These are techniques that have proven their value through the centuries.
In this book Siebren van der Werf and Dick Huges revive this format for the modern sailor, who has a sextant and an accurate clock. There are modern declination tables for four years, 2017-2020, but which may also be used for at least twelve years, without significant loss of accuracy. Also tables that give the length of the day light period, the time between sunrise and sunset. They let you find your longitude, which in the sixteenth century was not really possible. And of course there is the "Regiment of the North Star" in a new and user-friendly version. The story of a Trans-Atlantic crossing of Dick Huges, where he used celestial navigation, at first out of necessity, later by passion, illustrates the procedures.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

À propos de l'auteur

Siebren van der Werf (1942) is a retired physicist of the University of Groningen, The Netherlands. Besides sailing, his current interest and work is on the history of navigation and on refraction of light in the atmosphere and computer simulations of its anomalies, such as the fata morgana and the Novaya Zemlya phenomenon. In 1997 he received the Samuel Burka Award of the American Institute of Navigation for his study on the lunar distance method.

Dick Huges (1944) is a chest physician by profession (retired). He made several long-distances sailing journeys including a solo-circumnavigation of the world. In 2000 and 2003 he received the "Voorzittersprijs der Nederlandsche Vereeniging van Kustzeilers (the Chairman’s award of the Dutch Association of Coastal Yachtsmen), and in 2005 he won the "Trans-Ocean-Medaille für hervorragende hochseeseglerische Leistungen" (T-O- Medaille for extraordinary ocean-sailing achievements). Dick’s conclusion after 70.000 miles on the high seas is: "stay in touch with the basics and focus on the essentials, not on luxuries".

À propos de la quatrième de couverture

Taking the height of the pole
For the sixteenth century navigator this meant finding your latitude. Five centuries ago, to the year, the first nautical handbooks on celestial navigation appeared in print with declination tables written for 1517-1520. They explained how you can find your position taking the height of the sun or the Pole Star. And which course to steer to find your port. These are techniques that have proven their value through the centuries.
In this book Siebren van der Werf and Dick Huges revive this format for the modern sailor, who has a sextant and an accurate clock. There are modern declination tables for four years, 2017-2020, but which may also be used for at least twelve years, without significant loss of accuracy. Also tables that give the length of the day light period, the time between sunrise and sunset. They let you find your longitude, which in the sixteenth century was not really possible. And of course there is the "Regiment of the North Star" in a new and user-friendly version. The story of a Trans-Atlantic crossing of Dick Huges, where he used celestial navigation, at first out of necessity, later by passion, illustrates the procedures.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
Lanasta
Date d'édition
2018
Langue
anglais
ISBN 10 
9086163424
ISBN 13 
9789086163427
Reliure
Broché
Nombre de pages
80
Coordonnées du fabricant
non disponible
Personne responsable
non disponible