Uttmark's guide to the United States local inspectors examination for masters and mates of ocean going steam and sailing ships (1919)
Uttmark, Fritz E · [New York] The Author · leaf 48
w H— S is a heavenly body. The angle E Z S is the Amplitude of S. (Fig. 39.) 20 DEFINITIONS 57.—*What is Azimuth? Azimuth is the angle at zenith between themeridian of the observer andthe vertical circle passingthrough the center of thecelestial body. It is gener-ally reckoned from North inNorth… … Fig. 40. 58.—*What are Diurnal Motions? The movements of the celestial bodies during the24 hours are called Diurnal or Daily Motions. 59.—*What is a Nautical Chart? A Nautical Chart is a map representing a minia-ture portion of the sea, lakes or navigable riverswith coast lines, depths of water,…
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