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- Q135 - Navigation Problems: Oceans
269. On 23 September your 1836 DR position is LAT 25° 18' S, LONG 162° 36' E. You observe an unidentified star bearing 148° T at an observed altitude (Ho) of 13° 32'. The chronometer reads 07h 34m 12s, and is 01m 54s slow. Which star did you observe?
The observed star's declination, calculated from the latitude, altitude, and azimuth, is approximately 57 S. Achernar is the only star among the choices with a declination near this value, making it the correct identification.
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