On 14 January your 0550 DR position is LAT 25°26.0'N, LONG 38°16.0'W. You observe an unidentified star bearing 043°T at an observed altitude (Ho) of 37°12.1'. The chronometer reads 08h 48m 51s, and is 01m 22s slow. What star did you observe?

Correct Answer: Option A — Eltanin

Convert chronometer time to GMT to find the GHA of Aries. Calculate the LHA of the star using the DR longitude. By matching the resulting declination and SHA against the Nautical Almanac entries for 14 January, Eltanin is confirmed as the celestial body corresponding to the observed altitude and bearing.