New Lunar Tables: For Correcting the Apparent Distance of the Moon from the Sun, Fixed Star, Or Planet, for the Effects of Refraction and Parallax : ... to which is Added a New, Easy, and Accurate Method of Finding the Latitude by Double Altitudes ... |
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1st Corr 2nd Corr added angle answering apparent altitude apparent distance Arch Ascension ascertaining bearing CALCULATION Chart Coast Compasses computed corresponding Cosine course D's Hor Date declination deduced Diff difference DIRECTIONS Dist distance corrected Effect of Refraction Elford enter Table error EXAMPLE give greater altitude Greenwich Half Sum horizon horizontal parallax intervening day allow latitude less altitude less degree longitude LUNAR OBSERVATION Mean measuring meridian altitude method minutes month moon moon's parallax morning Nautical Almanac Navigator noon North O's App objects observed altitude observed distance obtained opposite Planet points practice PRINCIPAL FIXED STARS remainder result RULE sailed Secant second column semidiameter Sept sets sextant ship Sine Stansbury's STAR STAR STAR subtract Surveys Table taken third TRANSITS true altitude True Distance Watch