## 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 ... the Whole Exemplified in a Journal Kept from Boston to Madeira ... with an Appendix, Containing Methods to Calculating Eclipses of the Sun and Moon, and Occultations of the Fixed Stars ... |

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### Common terms and phrases

anchor apparent altitude azimuth bearing cable calculation centre chronometer circle column compass Corr correct altitude correct central altitude corresponding Cosec cosine degrees diff difference of latitude difference of longitude Dist 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 meridional difference method middle latitude miles minutes moon moon's Nautical Almanac nearly noon º º object observed altitude parallax parallel Parallel Sailing passing the meridian perpendicular Plane Sailing points polar distance radius 90 refraction right ascension screw sea account secant semidiameter sextant ship ship's side sine ſº star subtracted sun's declination Suppose taken tangent telescope traverse table triangle true altitude true distance variation wind wires zenith distance