Question 48Navigation Problems

The correct answer is A) Moon, Al Na'ir, Rigil Kentaurus. This is the correct answer because these three celestial bodies are well-suited for a fix at the given star time based on their magnitude, azimuth, and altitude. The Moon provides a bright and easily identifiable reference point, while Al Na'ir and Rigil Kentaurus are both relatively bright and well-positioned stars that can be used to triangulate the vessel's position. The other answer choices are incorrect because they do not provide an optimal combination of celestial bodies for a reliable fix. For example, Venus and Arcturus may not be as favorably positioned, while Deneb, Spica, and Markab may not be as bright or identifiable at the given star time.