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- Master & Mate (Oceans or Near Coastal (Limited Tonnage: Less Than 200 GRT)) »
- Q157 - Navigation Problems: Oceans
162. On 7 May you observe Polaris for latitude at 0303 ZT. Your DR position is LAT 56° 35.4' N, LONG 05° 38.9' W. The sextant altitude is 56° 11.1'. The height of eye is 36', and the index error is 3.3' off the arc. What is the latitude at the time of the sight?
The correct latitude is determined by correcting the sextant altitude for index error, dip, and star corrections, then applying the Polaris correction from the Nautical Almanac.
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