Question 1414Navigation General

The correct answer is C) a latitude line. When a celestial body, such as a star, is observed at lower transit, the resulting line of position is a latitude line. This is because at lower transit, the body is directly south (or north, depending on the hemisphere) of the observer, and the resulting line of position is perpendicular to the observer's meridian, representing a constant latitude. The other options are incorrect: A) a longitude line is not derived from a lower transit observation, B) the prime vertical is the vertical circle passing through the east and west points of the horizon, and D) the line of position from a lower transit observation is not of no special significance, as it represents a constant latitude.