On 29 April your 1913 zone time DR position is LAT 22°09.0' N, LONG 56°16.0' W. At that time you observe Polaris with a sextant altitude (hs) of 22°25.8'. The chronometer time of the sight is 11h 11m 14s, and the chronometer error is 02m 18s slow. The index error is 1.5' off the arc, and the height of eye is 61.5 feet. What is your latitude by Polaris?

Question

Accepted Answer

Option B: 22°39.9'N. Apply index error and height of eye corrections to obtain Ho. Use the Polaris correction tables in the Nautical Almanac, applying the LHA Aries to the observed altitude. This adjustment provides the latitude, which calculates to 22°39.9'N, accounting for the specific time and date of the observation.