On 18 August at 0600 ZT, morning stars were observed, and the vessel's position was determined to be LAT 19°48'N, LONG 108° 34'W. Your vessel is steaming on course 166°T at a speed of 16 knots. An observation of the Sun's lower limb is made at 1036 ZT. The chronometer reads 05h 34m 48s and is slow 01m 24s. What is the computed altitude (Hc) and azimuth (Zn) for this 1036 ZT observation using the assumed position method?

Question

Accepted Answer

Option A: Hc 65°14.8', Zn 100.4°. Determine GMT by applying chronometer error. Extract GHA and Declination from the Nautical Almanac. Using the assumed position, calculate the LHA. Applying Pub. 229 for the vessel's latitude and LHA yields the computed altitude (Hc) of 65°14.8' and an azimuth (Zn) of 100.4°, following standard celestial navigation reduction procedures.