Hover or tap underlined Spanish terms to see their translation and exam tip.
Se define como paralelo de declinación de un astro:The parallel of declination of a celestial body is defined as:
Show the answer
Correct answer: a) The small circle of the celestial sphere perpendicular to the hour circles of the bodies.
Why it is correct
A body’s parallel of declination is the small circle on the celestial sphere parallel to the celestial equator—and therefore perpendicular to the celestial axis and to every hour circle—passing through the body.
Why the others are not
- b) The pole-to-pole semicircles are hour circles or meridians.
- c) A great circle perpendicular to the equator through the body is its hour circle, not its parallel.
- d) Azimuth is measured along the true horizon (a great circle).
How to work it out in the exam
- Parallel of declination: small circle parallel to the equator and perpendicular to hour circles.
Where this question comes from
- Región de Murcia · 2024 · 2ª convocatoria · CY Tipo 1 · question 4 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.