On 22 March your 1834 DR position is LAT 26°13.5'S, LONG 108°36.5'W. You observe an unidentified star bearing 294°T at an observed altitude (Ho) of 33°02.7'. The chronometer reads 01h 32m 37s, and is 01m 50s slow. What star did you observe?

Correct Answer: Option B — Menkar

Determine the GHA of Aries and the Sidereal Hour Angle (SHA) of the observed body. Applying the DR longitude to find the LHA, then cross-referencing the calculated declination and azimuth in the Nautical Almanac confirms Menkar, as it aligns with the observed altitude and bearing for the given date and time.