Question 1658Navigation General
70% to passThe GHA of a star _______________.
A
decreases at a rate of approximately 4° per hour
B
decreases at a rate of approximately 15° per hour
C
increases at a rate of approximately 15° per hour
D
increases at a rate of approximately 4° per hour
AI Explanation
The correct answer is C) increases at a rate of approximately 15° per hour. The Geographical Hour Angle (GHA) of a star increases at a rate of approximately 15° per hour as the Earth rotates on its axis. This is because the Earth completes one full rotation of 360° in 24 hours, resulting in an increase of 15° per hour (360° / 24 hours = 15° per hour). The other options are incorrect because the GHA does not decrease, nor does it increase at a rate of 4° per hour, which would be an unrealistic rate of change.
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