You are on course 312°T. To check the speed of your vessel you should observe a celestial body on which bearing?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 312°
According to Bowditch celestial navigation standards, speed along the trackline (along-track motion) is monitored by observing a celestial body whose azimuth aligns directly with the vessel's true course of 312°T.
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