ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.com] Softcover
[Columbia, MD, U.S.A.] [Publication Year: 2012]

ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.Com] Softcover nach der Bestellung gedruckt Neuware - Printed after ordering - The horizons were of fundamental importance to Columbus. The western horizon was the focus of his lifelong quest for undiscovered territory. He used the stars grazing his northern horizon as his guides for sailing constant latitudes, and the lunar-planetary conjunctions (LPCs) at his eastern and western horizons to measure his longitudes.Most 15th Century oceanic sailors knew how to sail constant latitudes guided by the stars, but few, other than Columbus, knew how to use the heavens to measure longitude. His innovative navigation method measured longitudes by comparing measurements of LPCs at his eastern and western horizons using celestial data tabulated in his Ephemerides.Major findings include: Columbus used celestial events, he served on a 1477 voyage to Nova Scotia, comprehensive evidence reveals his 1492 landfall was at Egg Island, Amerigo Vespucci beat Ponce de Leon to Florida by a dozen years, and Columbus may have facilitated a deliberate sinking of the Santa Maria.
[Einbeck, Germany] [Publication Year: 2012]
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Paperback / softback. New. ISBN 1105863352 9781105863356 [GB]

Lulu Press, Date: 2012. Couple of tiny, faint stains along page edges.. Soft Cover. Very Good. Trade Paperback. 2012. Lulu Press ISBN 1105863352 9781105863356 [US]

Lulu.com. Used - Very Good. Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner’s name, short gifter’s inscription or light stamp. Lulu.com ISBN 1105863352 9781105863356 [US]

London Lulu.com 2012 Paperback New. 256 p.

Lulu.com 2012 Paperback Very Good Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp.

ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.com] Softcover Like New condition. Great condition, but not exactly fully crisp. The book may have been opened and read, but there are no defects to the book, jacket or pages.
[Tucson, AZ, U.S.A.] [Publication Year: 2012]

ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.com] Softcover Buy with confidence! Book is in new, never-used condition
[Amherst, NY, U.S.A.] [Publication Year: 2012]

ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.com] Softcover Book is in Used-LikeNew condition. Pages and cover are clean and intact. Used items may not include supplementary materials such as CDs or access codes. May show signs of minor shelf wear.
[Hawthorne, CA, U.S.A.] [Publication Year: 2012]

ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.com] Softcover
[Moncks Corner, SC, U.S.A.] [Publication Year: 2012]

ISBN10: 1105863352, ISBN13: 9781105863356, [publisher: Lulu.com] Softcover Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp.
[Frederick, MD, U.S.A.] [Publication Year: 2012]