1. Either of two points on the celestial sphere at which the ecliptic intersects the celestial equator. 2. Either of the two times during a year when the sun crosses the celestial equator and when the length of day and night are approximately equal; the vernal equinox or the autumnal equinox.
(esconder) Se, de repente, o site aparecer numa língua diferente, basta clicar na bandeira da sua língua e tudo voltará ao normal. (pauloaguia) (mostrar todas as dicas)