American Practical NavigatorU.S. Navy Hydrographic Office under the authority of the Secretary of the Navy, 1906 - Nautical astronomy |
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Common terms and phrases
00 Cape apparent azimuth bearing body celestial celestial sphere Center chart Chro chronometer Church circle Coast compass Corr correction corresponding cosec course dead reckoning declination deviation Diff Difference of Latitude difference of longitude direction Dist distance E.
H. W.
L. W. Spg earth east equal equator error EXAMPLE Extreme Flagstaff given Greenwich mean h. m.
h. m. ft Harbor Head horizon hour angle instrument intersection Island Islet light Light-house logarithm Long longitude Lunar Distance magnetic MARITIME POSITIONS measured meridian altitude method miles moon Nautical Almanac navigator Neap noon object Observatory observed parallax parallel plane Port POSITIONS AND TIDAL refraction Right Ascension Rock Sailing sextant ship ship's sidereal sight station subtract Summit Sumner line sun's Table telescope theodolite TIDAL DATA tides transit true vertical vessel wind