Question 1487Navigation General70% to pass
Right ascension is primarily used by the navigator for _______________.
AI Explanation
The correct answer is D) plotting on star finders.
Right ascension is a celestial coordinate that measures the east-west position of a celestial object on the celestial sphere. It is primarily used by the navigator for plotting on star finders, which are devices used to identify stars and determine their positions in the sky. This allows the navigator to identify their location based on the positions of the observed stars.
The other answer choices are incorrect because they do not directly relate to the primary use of right ascension. Right ascension is not directly used for calculating great circle sailings, entering air navigation tables, or calculating amplitudes, which are other navigational tasks performed by the mariner.
Related Questions
#1485 Inferior conjunction is possible for _______________.#1486 The owner or Master of a towing vessel that is operating within a Vessel Traffic Service (VTS) area must report specific information to the service. Which of the following choices is not required to be reported? #1488 The Moon is subject to four types of libration. Which of the following is NOT one of these types of libration? #1489 The arc of an hour circle between the celestial equator and a point on the celestial sphere, measured northward or southward through 90°, is the _______________.#1490 You are inbound in a channel marked by a range. The range line is 309°T. You are steering 306°T and have the range in sight as shown in illustration D048NG below. Which action should you take?