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- Q135 - Navigation Problems: Oceans
226. On 22 April your 1852 DR position is LAT 23°54.5'N, LONG 117°36.8'W. You observe an unidentified star bearing 248°T at an observed altitude (Ho) of 25°00.9'. The chronometer reads 02h 54m 53s, and is 02m 51s fast. What star did you observe?
Reduction of the sight using the Nautical Almanac and sight-reduction tables reveals that only Rigel's computed altitude and azimuth match the observed altitude of 2500.9' and true bearing of 248T from the given DR position and time.
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