Hover or tap underlined Spanish terms to see their translation and exam tip.
El Meridiano Superior del Lugar, es el semicírculo máximo que pasa por…….The Observer’s Upper Meridian is the great semicircle passing through…
Show the answer
Correct answer: c) the celestial poles and the Zenith.
Why it is correct
The observer’s celestial meridian is the great circle through the celestial poles (Pn and Ps) and the observer’s zenith and nadir. The poles divide it into two semicircles: the upper meridian (passing through the Zenith) and the lower meridian (passing through the Nadir).
Why the others are not
- a) The semicircle through E, W and the Nadir is the lower half of the prime vertical.
- b) The semicircle between the celestial poles passing through the Nadir is the lower meridian.
- d) The semicircle through E, W and the Zenith is the upper prime vertical.
How to work it out in the exam
- Observer’s upper meridian: great semicircle between the celestial poles passing through the Zenith.
Where this question comes from
- Región de Murcia · 2026 · 1ª convocatoria · CY Tipo 1 · question 1 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.