Hover or tap underlined Spanish terms to see their translation and exam tip.
Las coordenadas horarias de un astro son:The hour coordinates (“coordenadas horarias”) of a celestial body are:
Show the answer
Correct answer: a) Declination and Hour Angle of the body.
Why it is correct
In the hour-angle equatorial coordinate system, a celestial body’s position is defined by its declination (δ, measured along the hour circle from the equator) and its hour angle (LHA/GHA or t, measured along the equator from the upper meridian to the body’s hour circle).
Why the others are not
- b) Declination and Sidereal Hour Angle (or Right Ascension) are the uranographic coordinates.
- c) Mixes an equatorial coordinate (declination) with a horizon coordinate (azimuth).
- d) Altitude and azimuth are the horizon (alt-azimuth) coordinates.
How to work it out in the exam
- Hour coordinates: declination (δ) and hour angle (H) of the body.
Where this question comes from
- Región de Murcia · 2025 · 3ª convocatoria · CY Tipo 1 · question 7 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.