On 16 October evening twilight will occur at 1746 ZT.... - USCG Navigation Problems

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?

A Antares, Deneb, Vega

B Antares, Arcturus, Polaris

C Deneb, Polaris, Vega

D Vega, Polaris, Enif

AI Explanation

The correct answer is B) Antares, Arcturus, Polaris. This is because Antares, Arcturus, and Polaris are the three best stars to select for a fix at star time given the provided information. Antares and Arcturus are bright, prominent stars located near the observer's position, which makes them good choices. Polaris, the North Star, is also an excellent reference point as it is very close to the celestial north pole. The other options are incorrect because: A) Deneb is too far north for the given latitude. C) Polaris is a better choice than Deneb. D) Enif is not one of the brightest or most prominent stars in this region of the sky.

Question 62Navigation Problems

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?