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En lo que se refiere a las coordenadas horizontales, ¿cómo se denomina el ángulo complementario de la altura?With reference to horizon coordinates, what is the complementary angle of altitude called?
Show the answer
Correct answer: a) Zenith distance.
Why it is correct
In the horizon coordinate system, the complement of true altitude (a) is the zenith distance (z = 90° − a), measured along the vertical circle from the observer’s zenith to the body.
Why the others are not
- b) Amplitude is the complement of quadrantal azimuth at rising or setting (measured from East or West).
- c) Circular azimuth is the horizontal bearing from North from 000° to 360°.
- d) Dip is the small angle between the sensible horizon and the visible sea horizon.
How to work it out in the exam
- Complement of altitude in horizon coordinates: zenith distance (z = 90° − a).
Where this question comes from
- Ministerio de Transportes (Madrid) · 2026 · Convocatoria de abril · CY Test 1 · question 8 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2026 · Convocatoria de abril · CY Test 2 · question 2 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.