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 ...

Jonathan Ingersoll Bowditch

E. & G.W. Blunt, 1864 - Nautical astronomy - 749 pages

Contents

• Tablo Page Difference of latitude and departure for points 1: 1
• Demonstration of the most useful propositions of geometry 7: 7
• Demonstration of theorems in plane trigonometry: 13
• Construction of the plane scale: 18
• Description and use of the sliding rule: 25
• Division by logarithms: 31
• Difference for degrees 17: 33
• Table of solutions of the various cases of trigonometry: 37
• A short introduction to astronomy and geography: 45
• Examples in geography: 48
• Questions to exercise the learner in plane sailing: 58
• A table showing how many miles of meridian distance correspond to a degree of longi: 64
• Table to correct the middle latitude: 76
• Table of solutions of the various cases of Mercators sailing: 79
• To work a compound course by middle latitude or Mercators sailing: 86
• To find the difference between the true and apparent directions of the wind: 97
• Gauging: 103
• To survey a coast in sailing along shore: 109
• To reduce soundings taken at any time of the tide to low water: 115
• To find the time of high water by a Nautical Almanac: 121
• Description and use of a quadrant of reflection: 128
• To adjust a sextant: 134
• Adjustments of a circle of reflection 138: 138
• Description and use of a portable transit instrument: 145
• Tables for correcting the adjustments of a transit instrument: 151
• Variation of the compass: 158
• On the dip of the magnetic needle: 164
• To find the time of the moons passing the meridian: 170
• To find the latitude by the moons meridian altitude: 171
• To estimate the effects of small errors in the observations: 179
• Second method: 185
• Questions to exercise the learner in working double altitudes: 193
• To find the latitude by one altitude of the sun having your watch previously regulated: 200
• To find the time at sea and regulate a watch: 208
• To find the time at sea by a planets altitude: 215
• To regulate a chronometer by means of a transit instrument: 221
• General remarks on the taking of a lunar observation: 228
• Fourth method or Witchells improved method of finding the true distance: 243
• To calculate a planets altitude: 249
• To allow for the change of rate in a chronometer: 259
• Journal from Boston to Madeira: 265
• Meridional parts 62: 62
• Suns declination 68: 68
• For reducing the suns declination 72: 72
• Suns right ascension 77: 77
• Amplitudes 78: 78
• Right ascensions and declinations of the fixed stars 80: 80
• Suns rising and setting 84: 84
• For finding the distance of terrestrial objects at sea 8C X A Parallax in altitude of a planet 8: 86
• Proportional parts 87: 87
• Refraction of the heavenly bodies 88: 88
• To find the correction and logarithm of a lunar observation when a star or either of the planets Venus Mars Jupiter or Saturn is observed 89: 89
• To find the correction and logarithm of a lunar observation when the sun is used 97: 97
• To find the correction and logarithm of a lunar observation depending on the moons altitude 98: 98
• For finding the third correction of a lunar observation 130: 130
• For turning degrees and minutes into time and the contrary 131: 131
• Proportional logarithms 132: 132
• For finding the latitude by two altitudes of the sun 148: 148
• Natural sines and cosines 160: 160
• Log sines tangents c to points and quarter points 169: 169
• To find the time of the moons passing the meridian 230: 230
• To find the suns right ascension 237: 237
• Variation of the suns altitude in one minute from noon 239: 239
• To reduce the numbers of Table XXXII to other given intervals from noon 243: 243
• Errors arising from a deviation of one minute in the parallelism of the surfaces of the central mirror 244: 244
• Longitudes and latitudes of the fixed stars 245: 245
• Reductions of latitude and horizontal parallax 246: 246
• Aberration of the fixed stars in right ascension and declination 247: 247
• Nutation in right ascension and declination 248: 248
• Augmentation of the moons semidiameter found by the nonagesimal 249: 249
• change of 100 seconds in its declination 251: 251
• Third correction in Lyonss improved method 275: 275
• Correction for a planet whose horizontal parallax is 35: 326
• 364: 336
• ANAMBAS ISLANDS: 356
• ANDAMAN: 362
• APO BANK: 369
• CATALOGUE OF THE TABLES with examples of the uses of those not explained in other: 386
• Addition and subtraction using the signs as in algebra: 395
• To find the altitude and longitude of the nonagesimal: 402
• To calculate the longitude of a place from the observed beginning: 409
• To project an eclipse of the moon: 415
• To project an occultation of a fixed star: 423
• To find the longitude of a place by measuring the distance of the moon: 429
• Given the right ascension and declination to find the longitude: 435
• Redfields theory of storms C: 443
• ARABIA coast: 448

Bibliographic information

• Title: 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 ...
• Author: Jonathan Ingersoll Bowditch
• Edition: 32, reprint
• Publisher: E. & G.W. Blunt, 1864
• Original from: Princeton University
• Digitized: Jan 23, 2009
• Length: 749 pages