The Equinoxes are important for marking the seasons. Because they are on the Ecliptic, the Sun passes through each equinox every year. When the Sun passes through the Vernal Equinox (usually on March 21st), it crosses the Celestial Equator from South to North, signifying the end of Winter for the Northern hemisphere. Similarly, when the Sun passes through the Autumnal Equinox (usually on September 21st), it crosses the Celestial Equator from North to South, signifying the end of Winter for the Southern hemisphere.
Os equinocios son importantes para marcar as estacións. Dado que están na Eclíptica, o Sol pasa por cada equinocio cada ano. Cando o Sol passa polo Equinocio Vernal (normalmente o 21 de marzo), cruza o Ecuador celeste de sul a norte, o que indica o fin do inverno no Hemisferio Norte. Da mesma maneira, cando o Sol pasa polo Equinocio de Outono (normalmente o 21 de setembro), cruza o Ecuador celeste de norte a sul, o que indica o remate do inverno no Hemisferio Sul.