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- Q135 - Navigation Problems: Oceans
246. On 22 March your 1834 ZT DR position is LAT 26°13.5' S, LONG 108°36.5' W. You observe an unidentified star bearing 077°T, at an observed altitude (Ho) of 43°10.5'. The chronometer reads 01h 32m 37s and is 01m 50s slow. What star did you observe?
Alphard's computed altitude and azimuth, derived from the given DR position, time, and astronomical data, match the observed altitude of 4310.5' and bearing of 077T.
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