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- Q135 - Navigation Problems: Oceans
73. On 10 March in DR position LAT 21°42.0'S, LONG 57°28.0'E, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 08h 28m 17s, and the chronometer error is 00m 00s. The sextant altitude (hs) is 72°08.0'. The index error is 3.4' on the arc, and your height of eye is 52.7 feet. What is the latitude at meridian transit?
After correcting the sextant altitude, applying the ex-meridian reduction, and using the meridian-altitude latitude formula with the Sun's declination, the computed latitude is 2145.5′S.
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