Hover or tap underlined Spanish terms to see their translation and exam tip.
Situados en la esfera celeste, el eje que va desde nuestra posición o zenit, pasa por el centro de la esfera y sale a 180º de nosotros por el otro lado, se le llama:On the celestial sphere, the axis from our position or zenith, through the centre of the sphere and out 180º away on the other side, is called:
Show the answer
Correct answer: d) The zenith-nadir axis (Z-Z′).
Why it is correct
The zenith is overhead and the nadir directly below, on the far side of the sphere. The line joining them is the zenith-nadir axis.
Why the others are not
- a) Not the term.
- b) It lies on the horizon.
- c) It lies on the horizon.
How to work it out in the exam
- Above zenith, below nadir.
Where this question comes from
- Región de Murcia · 2023 · 1ª convocatoria · CY Tipo 1 · question 7 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.