Hover or tap underlined Spanish terms to see their translation and exam tip.
El punto cardinal N:On the celestial sphere, the North cardinal point (N):
Show the answer
Correct answer: d) Answers a) and b) are correct.
Why it is correct
The North and South cardinal points are the two intersections of the true horizon with the observer’s celestial meridian. The North point therefore lies both on the horizon and on the observer’s meridian (upper or lower depending on hemisphere).
Why the others are not
- a) True, but it also lies on the observer’s meridian (b).
- b) True, but it also lies on the horizon (a).
- c) The intersection of the horizon with the equator gives the East and West cardinal points.
How to work it out in the exam
- North cardinal point: lies on both the true horizon and the observer’s meridian.
Where this question comes from
- Junta de Andalucía · 2016 · 1ª convocatoria · CY Módulo de navegación · question 1 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.