The Improved Practical Navigator: Containing All Necessary Instruction for Determining the Latitude by Various Methods, and for the Ascertaining the Longitude by Lunar Observations, in a Complete Epitome of Navigation. To which is Added a Number of New Tables
David Steel, 1802 - Nautical astronomy - 326 pages
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The Improved Practical Navigator: Containing All Necessary Instructions for ...
Nathaniel Bowditch,Thomas Kirby
No preview available - 2015
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added altitude anchor angle apparent arch base bearing called Cape centre circle Co-sec co-sine column compass contains correction course declination Degs departure Diff difference of latitude difference of longitude Dift direct dist distance Ditto divided division draw east England equal EXAMPLE extent fathoms feet figure foot France given gives glass greater Greenwich half hand Head horizon Inand land length less logarithm longitude marked means measured meridian middle miles moon moon's nearly noon object observation opposite parallel passing perpendicular plane Point radius remainder right line rising rocks rule sail scale Secant ship ship's side sine stands star subtracted sun's Table taken Tang tangent triangle true variation wind