On 22 June your 0424 DR position is LAT 26°18.5'N, LONG 124°18.2'W. You observe an unidentified star bearing 195°T at an observed altitude (Ho) of 03°30.7'. The chronometer reads 00h 23m 24s, and is 01m 32s slow. What star did you observe?

Correct Answer: Option B — Peacock

Convert chronometer time to GMT and determine GHA Aries. Calculate LHA using the DR longitude. By comparing the calculated LHA and declination against the observed altitude of 03°30.7' and bearing of 195°T, the celestial coordinates uniquely identify the star as Peacock.