On 14 January your 0746 zone time DR position is LAT 26°37.0'N, LONG 153°19.0'W. At that time, you observe the Sun bearing 123°psc. The chronometer reads 05h 49m 16s, and the chronometer error is 02m 29s fast. The variation is 3°W. What is the deviation of the standard magnetic compass?

Correct Answer: Option D — 1.4°W

Compass deviation is determined by comparing true bearing (calculated via celestial sight and Nautical Almanac GMT) to magnetic bearing using the relation True = Magnetic ± Variation, and Magnetic = Compass ± Deviation. Applying Bowditch celestial reduction formulas yields 1.4°W deviation.