Deviation by Amplitude (Sun) | Problem 1 | Celestial Navigation

In this video we solve the problem below.

On 28 September in DR position LAT 27° 16.7' S, LONG 113° 27.2' W, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 273° psc. The chronometer reads 01h 17m 26s and is 01m 49s slow. Variation in the area is 6° W. What is the deviation of the standard magnetic compass?

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Link to the Nautical Almanac used in the video.
Amazon.com: Nautical Almanac: 9781480202702: Hickethier MBA, Mr. Alexander F.: Books