Hover or tap underlined Spanish terms to see their translation and exam tip.
El arco de ecuador celeste contado hacia el oeste, desde el meridiano superior del lugar hasta el Punto de Aries es:The arc of the celestial equator measured westward from the observer’s upper meridian to the First Point of Aries is:
Show the answer
Correct answer: c) The Local Hour Angle of Aries (Horario del lugar de Aries).
Why it is correct
The arc of the celestial equator measured westward from 0° to 360° from the observer’s upper meridian to the First Point of Aries (♈) is, by definition, the Local Hour Angle of Aries (LHA ♈ / HL♈, also equal to local sidereal time).
Why the others are not
- a) The standard nautical term is Local Hour Angle of Aries (LHA ♈).
- b) It is not called 'local sidereal longitude'.
- d) 'Sidereal longitude of Aries' is not a nautical astronomy term.
How to work it out in the exam
- Equatorial arc westward from the observer’s upper meridian to Aries = Local Hour Angle of Aries (LHA ♈).
Where this question comes from
- Junta de Andalucía · 2023 · 2ª convocatoria · CY Módulo de navegación · question 3 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.