On 16 October evening twilight will occur at 1746 ZT. Your DR position will be LAT 28°43.2' N, LONG 60°29.8' W. Considering their magnitude and location, which of the following are the three best stars to select for a fix at star time?
Official USCG Answer & Rule Citation
Correct Answer: Option B — Antares, Arcturus, Polaris
Navigational star selection principles dictate choosing celestial bodies distributed across different azimuth quadrants with favorable altitudes. Antares, Arcturus, and Polaris offer optimal geometric intersection, distinct azimuth spacing, and sufficient brightness for evening twilight observation in northern latitudes.
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