An Epitome of Navigation, and Nautical Astronomy, with the Improved Lunar Tables, Volume 1 |
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Common terms and phrases
A.M. at ship apparent altitude azimuth celestial chronometer circle compass correction cosec cosine course and distance decimal degrees difference of latitude difference of longitude direction dist distance run draw earth eclipse epact equal equator Examples for Exercise feet find the diff find the latitude fixed star given Greenwich date Greenwich mean height horizon horizontal parallax hour angle index error latitude and longitude logarithm longitude by chronometer mean time Greenwich meridian altitude Middle Latitude miles minutes moon moon's Nautical Almanac noon object observed altitude orbit parallax Parallel Sailing perp perpendicular Plane Sailing planet polar distance pole rectangle refraction remainder required the latitude right angles right ascension sails secant seconds semd semidiameter sextant ship from latitude sine square subtract sun's declination Table taken tangent Theorem triangle true altitude variation zenith distance