[Coffin, John Huntington Crane], 1815-1890. [from old catalog] · New York, D. Van Nostrand · leaf 283
of the magnetic bearing.* 273. Peoblem 62. To find the azimuth, or true bearing,of a terrestrial object. Solution. LetZ (Fig. 50) be the zenith, or place, of the observer;O, the terrestrial object;M, the apparent place of the sun, or some other celestial body;Z — N Z O, the azimuth of O ;z = N Z M,… … * This has reference to the two readings. The actual direction of theobject is the same; but the true and magnetic meridians, from which theangles are estimated, are different. When the magnetic declination is east,the magnetic meridian is to the right of the true meridian ; when the mag-netic…
Navigation · Nautical astronomy
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