## The New American Practical Navigator: Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nautical Almanac in Determining the Latitude, and the Longitude by Lunar Observations, and Keeping a Complete Reckoning at Sea; Illustrated by Proper Rules and Examples: The Whole Exemplified in a Journal Kept from Boston to Madeira, in which All the Rules of Navigation are Introduced ... |

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### Common terms and phrases

anchor angle apparent altitude azimuth bearing cable calculation centre chronometer circle column compass Corr correct altitude correct central altitude corresponding Cosec cosine course degrees diameter diff difference of latitude difference of longitude Dist divided elapsed equal equator error EXAMPLE feet Funchal given Greenwich half-sum horizon glass horizontal parallax hour angle hypotenuse instrument latitude and departure line of numbers logarithm lower limb mean meridian altitude method middle latitude miles minutes moon moon's multiplied Nautical Almanac nearly noon º º object observed altitude parallax parallel passing the meridian perpendicular Plane Sailing points polar distance quadrant radius 90 refraction right ascension rule sea account secant semidiameter sextant ship ship's side ſº ſound star subtracted sun's declination Suppose taken tangent telescope triangle true altitude true distance variation wind wires zenith distance