Hover or tap underlined Spanish terms to see their translation and exam tip.
Los puntos de la Eclíptica del Sol cuya declinación es igual a cero son:The points on the Sun’s ecliptic where declination is equal to zero are:
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Correct answer: b) Aries and Libra.
Why it is correct
The ecliptic intersects the celestial equator at the two equinoctial points: the First Point of Aries (vernal equinox) and the Point of Libra (autumnal equinox). Because both lie on the celestial equator, the Sun’s declination there is δ = 0°.
Why the others are not
- a) Cancer and Capricorn are the solstitial points, where declination reaches ±23° 27′.
- c) At Cancer the Sun’s declination is +23° 27′, not zero.
- d) Jupiter is a planet, not an equinoctial point on the ecliptic.
How to work it out in the exam
- Sun’s declination equal to 0° on the ecliptic: equinoctial points Aries and Libra.
Where this question comes from
- Región de Murcia · 2025 · 3ª convocatoria · CY Tipo 1 · question 9 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.