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angle of meeting Angular Distance answering apparent distance arch Argo Navis calculation chronometer circle clearing the Angular Co-altitude Co-latitude Co-sec Co-tang compass correction Diff Difference of Latitude Dist 181 Lat Dist Lat Dep Distl Earth effect of Refraction elapsed Equator error Example Example.—Suppose figure find the true Geocentric Latitude heavenly bodies height horizon Latitude 52 Latitude and Departure Latitude found LOGARITHMIC SINES LOGARITHMS OF NUMBERS LUNI-SOLAR TABLE Magnetic Amplitude Meridian Altitude Meridian of Greenwich miles Moon Moon's Apparent Altitude Moon's Horizontal Parallax Natural Co-sines Nautical Almanac noon Observed Altitude opposite passing the Meridian place of observation Polar distance problem Refraction and Parallax Required the true Right Ascension sailed Secant semi-diameter shew Star's subtracted Sun's centre Sun's declination Sun's lower limb Table 31 Tang TANGENTS true Altitude true Amplitude true Azimuth true distance true Longitude tude variation VERSED SINES Zenith distance
Page 41 - Difference of Latitude and Departure for 26 Degrees. Dist Lat. Dep. Dist Lat. Dep. Dist Lat. Dep. Dist Lat. Dep. Dist Lat. Dep. 1 3 3 4 5 0 7 8 9 10 00.9 01.8 02.7 03.
Page 11 - Difference of Latitude and Departure, for 3 Points. Dist Lat. Dep. Dist Lat. Dep. Dist Lat. Dep. Dist Lat. Dep. Dist Lat. Dep. i 00.8 00.6 61 50.7 33-9 121 100. 6 67.2 181 150.5 100. 6 241 200.4 133-9 2 O1...
Page 10 - Difference of Latitude and Departure for 2^ Points. Dist Lat. Dep. Dist Lat. Dep. Dist Lat Dep. Dist Lat. Dep. Dist Lat. Dep 1 a s 4 1 6 7 8 g 10 00.9 01.8 02.6 03.5 04.4 05.
Page 35 - Dist Dep. Lat. Dist. Dep. Lat. Dist. Dep. Lat. Dist. Dep. Lat, Dist, Dep. Lat, Difference of Latitude and Departure for 19 Degrees.
Page 51 - For Reducing the Sun's Declination to any given Meridian, and to any time under that Meridian.
Page 35 - ... determination ; particularly during the winter months, when the sun is so very frequently obscured by clouds at the time of its coming to the meridian. These Tables were computed by the following rule; viz., To the constant log. 0. 978604,* add the log. co-sines of the latitude and the declination ; the sum, rejecting 20 from the index, will be the log. of a natural number, which, being subtracted from the natural co-sine of the difference between the latitude and the declination, when they are...
Page 66 - Dist. Lat. Dep. Dist. Lat. Dep. Dist. Lat. Dep. Dist Lat. Dep. Dist. Lat. Dep. 1 2 3 4 5 6 7 8 9 10 00.8 01.7 02.5 o3.3 04.2 o5.0 o5.8 06.7 o7.5 o8.3 00.6 01 .1 01.7 O2.
Page 35 - Lat, [For 71 Degrees. 36 TABLE II. Difference of Latitude and Departure for 20 Degrees. Dist Lat Dep Dist Lat. Dep. Dist Lat Dep. Dist I Lat.