Question 1390Navigation General70% to pass
If the Sun's observed altitude is 47°50', the zenith distance is _______________.
AI Explanation
The correct answer is A) 42°10'.
The zenith distance is the complement of the observed altitude, meaning it is 90° minus the observed altitude. In this case, the observed altitude is 47°50', so the zenith distance is 90° - 47°50' = 42°10'.
The other answer choices are incorrect because:
B) 42°50' is not the correct complement of 47°50'.
C) 47°50' is the observed altitude, not the zenith distance.
D) 132°10' is not the correct complement of 47°50'.
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