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- Q127 - Navigation Problems: Oceans
81. On 13 September your 1830 ZT DR position was LAT 23°03'S, LONG 105°16'E when you observed a faint unidentifiable star through a hole in the clouds. The star bore 351.5°T at a sextant altitude (hs) of 62°05.6'. The chronometer read 11h 24m 39s and is 5m 08s slow. The index error is 1.0' off the arc, and the height of eye is 52 feet. What star did you observe?
Beta Ophiuchi's computed altitude and azimuth, derived from the DR position and time, align with the corrected sextant altitude and observed bearing, confirming its identification.
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