Question 101Navigation Problems

The correct answer is A) 25°37.6'N. To calculate the latitude by Polaris, we need to use the Polaris altitude method. This method involves measuring the altitude of Polaris, the North Star, and then using the observed altitude, the height of eye, and the chronometer information to determine the latitude. In this case, the observed altitude of Polaris is 25°20.8', the height of eye is 52 feet (15.9 meters), and the chronometer time is 09h 38m 12s with a chronometer error of 03m 12s slow. Applying the appropriate formula and corrections, the calculated latitude is 25°37.6'N, which matches the correct answer. The other options are incorrect because they do not accurately reflect the latitude calculated using the provided information and the Polaris altitude method.