Hover or tap underlined Spanish terms to see their translation and exam tip.
El ángulo que forman la Eclíptica y el Ecuador Celeste es:The angle formed between the Ecliptic and the Celestial Equator is:
Show the answer
Correct answer: b) The maximum possible absolute value of the Sun’s declination.
Why it is correct
The angle between the ecliptic and the celestial equator is the obliquity of the ecliptic (ε ≈ 23° 27′). Because the Sun travels along the ecliptic, its declination ranges between 0° (at the equinoxes) and ±23° 27′ (at the solstices), so this angle equals the maximum absolute value of the Sun’s declination.
Why the others are not
- a) The minimum absolute value of the Sun’s declination is 0° (at the equinoxes).
- c) At the First Point of Aries (vernal equinox) the Sun’s declination is 0°.
- d) The obliquity of the ecliptic is 23° 27′, not 26° 27′.
How to work it out in the exam
- Angle between Ecliptic and Celestial Equator (≈ 23° 27′) = maximum absolute declination of the Sun.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2022 · Convocatoria de junio · CY Test 1 · question 10 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2022 · Convocatoria de junio · CY Test 2 · question 6 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.