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- Q135 - Navigation Problems: Oceans
376. On 7 November your 0830 zone time fix gives you a position of LAT 27°36.0'N, LONG 162°19.0'W. Your vessel is on course 289°T and your speed is 19.0 knots. Local apparent noon (LAN) occurs at 1138 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 45°35.0'. What is the latitude at 1200 ZT?
Calculate latitude at Local Apparent Noon (LAN) using the Sun's observed altitude and declination, then advance this latitude by the vessel's distance run between LAN and 1200 ZT to determine the latitude at 1200 ZT.
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