Question 76Navigation Problems

70% to pass

On 15 October your 0300 zone time DR position is LAT 27°14' S, LONG 99°46' E. You are on course 128°T at a speed of 19 knots. Considering their magnitude, azimuth, and altitude, which group includes the three bodies best suited for a fix at star time?

A Achernar, Suhail, Alphard
B Jupiter, Alphard, Betelgeuse
C Mars, Regulus, Canopus
D Achernar, Procyon, Aldebaran
AI Explanation

The correct answer is D) Achernar, Procyon, Aldebaran. This is the correct answer because these three celestial bodies are well-suited for obtaining a celestial fix at the given time and location. Achernar, Procyon, and Aldebaran are bright stars with high altitudes and azimuths that would provide good intersecting lines of position for a reliable fix. The other answer choices do not include the optimal combination of stars for this specific scenario. The other options are incorrect because: A) Achernar, Suhail, and Alphard are not as well-positioned for a fix at the given time and location. B) Jupiter, Alphard, and Betelgeuse do not provide the best geometry for an accurate celestial fix. C) Mars, Regulus, and Canopus are not the most suitable stars for this particular situation.

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