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- Q135 - Navigation Problems: Oceans
65. On 10 August your 0430 ZT position is LAT 29° 56.7' S, LONG 139° 11.0' E. Your course is 321° T, speed 18.2 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0500 running fix. OBSERVED STAR TIME GHA DECLINATION ALTITUDE -------------------- ------- --------------- --------------- ----------- Fomalhaut 0452 272° 03.3' S 29° 43.1' 46° 05.3' Canopus 0459 162° 05.5' S 52° 41.0' 41° 48.9' Achernar 0510 236° 28.2' S 57° 19.6' 60° 26.5'
The 0500 running fix is determined by reducing each star sight, advancing or retarding the resulting lines of position to a common time, and finding their intersection, which is 29 49.2' S, 138 57.0' E.
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