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- Master & Chief Mate (Oceans or Near Coastal (Unlimited Tonnage)) »
- Q109 - Navigation Problems: Oceans
364. On 6 March your 1854 zone time DR position is LAT 23° 51.5' N, LONG 73° 14.0' W. At that time you observe Polaris with a sextant altitude (hs) of 24° 16.5'. The chronometer time of the sight is 11h 52m 40s, and the chronometer error is 01m 56s slow. The index error is 5.0' on the arc, and the height of eye is 43.5 feet (13.3 meters.) What is your latitude by Polaris?
Choice B is correct; reducing the Polaris sight and applying the Nautical Almanac's Polaris latitude corrections yields a latitude of 23 36.3' N.
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