Hover or tap underlined Spanish terms to see their translation and exam tip.
Sobre la esfera celeste un yate se encuentra en un meridiano celeste concreto y en ese instante, un astro se encuentra en su círculo horario correspondiente. ¿Cómo se llama el arco de Ecuador celeste entre el meridiano celeste del observador y el círculo horario del astro?On the celestial sphere a yacht is on a given celestial meridian and, at that instant, a body is on its hour circle. What is the arc of the celestial equator between the observer’s celestial meridian and the body’s hour circle called?
Show the answer
Correct answer: b) Local hour angle.
Why it is correct
It runs from the observer’s meridian to the body: the local hour angle.
Why the others are not
- a) A Greenwich hour angle starts at Greenwich.
- c) It starts at Greenwich, not at the observer.
- d) The sidereal angle starts at Aries.
How to work it out in the exam
- From the observer: local. From Greenwich: Greenwich. From Aries: sidereal.
Where this question comes from
- Región de Murcia · 2018 · 3ª convocatoria · CY Tipo 1 · question 3 Official paper · Official answer key
- Región de Murcia · 2021 · 2ª convocatoria · CY Tipo 1 · question 7 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.