American Practical NavigatorU.S. Navy Hydrographic Office under the authority of the Secretary of the Navy, 1918 - Nautical astronomy |
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Common terms and phrases
00 Cape azimuth barometer bearing Center chart Chro chronometer Church circle Coast Corr correction cosec course cyclonic dead reckoning declination determined deviation Diff Difference of Latitude direction Dist E.
H. W.
L. W. Spg earth east entrance equator EXAMPLE Extreme Flagstaff Greenwich Greenwich mean h. m.
h. m. ft Harbor HAVERSINE FORMULA Head horizon hour angle intersection Island Islet Latitude and Departure light Lighthouse log hav logarithm Long longitude lunitidal interval magnetic MARITIME POSITIONS mean measured meridian altitude method miles nat hav Nautical navigator Neap noon Observatory observed altitude parallax parallel plane Port POSITIONS AND TIDAL prime vertical right ascension Rock sextant ship sight station Summit Sumner line sun's visible telescope theodolite TIDAL DATA tides tower transit true vertical vessel watch wind zenith distance