On 8 April while taking observations for an evening fix, you observe an unidentified star bearing 250.7°T at an observed altitude of 51°44.8'. Your DR position at the time of the sight was LAT 22°16.0' N, LONG 157°58.3' W. The chronometer reads 05h 09m 57s and is 01m 23s slow. What star did you observe?

Question

On 8 April while taking observations for an evening fix, you observe an unidentified star bearing 250.7&deg;T at an observed altitude of 51&deg;44.8'. Your DR position at the time of the sight was LAT 22&deg;16.0' N, LONG 157&deg;58.3' W. The chronometer reads 05h 09m 57s and is 01m 23s slow. What star did you observe?

Accepted Answer

Option C: Bellatrix. Determine the star's LHA by combining GHA Aries and SHA. Using the DR latitude and the observed altitude, compute the Hc and Zn. The calculated values for Bellatrix align with the observed bearing of 250.7°T and altitude of 51°44.8', confirming the star's identity.