Question 1354Navigation General70% to pass
The GP of a body for a high altitude sight is determined from the Greenwich hour angle and the _______________.
AI Explanation
The correct answer is A) declination.
The GP (Geographic Position) of a body for a high altitude sight is determined from the Greenwich Hour Angle (GHA) and the declination of the celestial body. The declination is the angular distance of a celestial body north or south of the celestial equator, which is the key factor, along with the GHA, in calculating the GP.
The other options are incorrect because:
B) azimuth angle is not used to determine the GP.
C) the circle of equal altitude is not a factor in calculating the GP.
D) the zenith distance is also not used to determine the GP.
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