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- Q135 - Navigation Problems: Oceans
252. At 2231 ZT on 14 July you are in DR position LAT 34° 06' S, LONG 149° 47' W, when you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 257.1° psc. The variation is 15° E. What is the deviation?
The deviation is 2.5 W. The true azimuth of Jupiter, calculated from the latitude and declination, is 269.6. After accounting for the 15 E variation, the compass bearing of 257.1 results in a 2.5 W deviation.
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