On 25 June at 0612 zone time, morning stars were observed, and the vessel's position was determined to be LAT 28°13.0'S, LONG 49°34.0'E. Your vessel is steaming at 17.0 knots on a course of 066°T. A sextant observation of the Sun's lower limb is made at 1022 zone time. The chronometer reads 07h 19m 17s, and the sextant altitude is 35°26.3'. The index error is 1.5' on the arc, and the chronometer error is 02m 51s slow. Your height of eye on the bridge is 58.0 feet. What is the azimuth (Zn) of this sight using the assumed position?

Question

Accepted Answer

Option A: 021.5°T. Azimuth (Zn) calculation via the intercept method utilizes the celestial triangle solved through assumed latitude, local hour angle, and declination. Standard sight reduction tables (Pub. No. 229 or 249) provide the calculated azimuth angle, converted to true azimuth.