On 1 April at 0515 zone time, morning stars were observed, and the vessel's position was determined to be LAT 27°05.0'N, LONG 16°30.0'W. Your vessel is steaming at 19.0 knots on a course of 022°T. A sextant observation of the Sun's lower limb is made at 0930 zone time. The chronometer reads 10h 28m 25s, and the sextant altitude is 46°20.3'. The index error is 4.5' off the arc, and the chronometer error is 02m 15s slow. Your height of eye on the bridge is 57.0 feet. What is the azimuth (Zn) of this sight using the assumed position?

Question

Accepted Answer

Option A: 115.0°T. Determine the LHA of the Sun using the GHA and the assumed longitude. Using Pub. 229, enter with the latitude, LHA, and Declination to extract the azimuth (Zn). The calculation confirms the azimuth is 115.0°T, consistent with the standard celestial navigation procedures outlined in Bowditch.