On 22 May your 0437 DR position is LAT 25°18.5'N, LONG 51°18.0'W. You observed an unidentified star bearing 233°T at an observed altitude (Ho) of 29°42.3'. The chronometer reads 07h 40m 40s, and is 03m 24s fast. What star did you observe?

Question

On 22 May your 0437 DR position is LAT 25&deg;18.5'N, LONG 51&deg;18.0'W. You observed an unidentified star bearing 233&deg;T at an observed altitude (Ho) of 29&deg;42.3'. The chronometer reads 07h 40m 40s, and is 03m 24s fast. What star did you observe?

Accepted Answer

Option B: Sabik. Calculate GMT and determine GHA Aries and SHA. Compute the LHA and Declination using the DR position. Comparing these coordinates against the Nautical Almanac star list confirms Sabik, as the calculated altitude and azimuth align with the observed data provided in the celestial navigation problem.

On 22 May your 0437 DR position is LAT 25&deg;18.5'N, LONG 51&deg;18.0'W. You observed an unidentified star bearing 233&deg;T at an observed altitude (Ho) of 29&deg;42.3'. The chronometer reads 07h 40m 40s, and is 03m 24s fast. What star did you observe?

On 22 May your 0437 DR position is LAT 25°18.5'N, LONG 51°18.0'W. You observed an unidentified star bearing 233°T at an observed altitude (Ho) of 29°42.3'. The chronometer reads 07h 40m 40s, and is 03m 24s fast. What star did you observe?