American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Equipment, Logan, George Wood, 1868-1915 · Washington, Govt. Print. Off. · leaf 133
one side of the meridian, it is better to observe the same body on bothsides of the meridian, and, if possible, at about the same altitude. The error of thechronometer having been found from each set of sights, the mean is taken as thecorrect error, and this mean will probably be nearer the true… … BY MERIDIAN ALTITUDE, 321. The latitude of a place on the surface of the earth, being its angulardistance from the equator, is measured by an arc of the meridian between the zenitliand the equator, and hence is equal to the decUnation of the zenith; therefore, if thezenith distance of any heavenly…
Navigation · Nautical astronomy
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