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- Q127 - Navigation Problems: Oceans
220. On 26 May your vessel's 1906 zone time position is LAT 27° 16.0' N, LONG 24° 37.0' W. At that time, a sextant observation of the planet Jupiter was made. The sextant altitude is 63° 27.6', and the chronometer reads 09h 05m 16s. The index error is 5.2' on the arc, and the chronometer error is 01m 25s slow. Your height of eye is determined to be 52.6 feet. What is the (Zn) of this sight using the assumed position?
Using the Nautical Almanac and sight reduction tables, the true azimuth (Zn) of Jupiter is determined to be 168.7 true, placing it in the south-southeast quadrant relative to the observer's position.
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