On the vernal equinox, the Sun rises perfectly due east, and sets 12 hours later, exactly due west. Be sure to notice this if you can see the sunrise or sunset on the day of the equinox, March 20.
The Sun is on the celestial equator, the midpoint between the celestial poles, balanced between the northern and southern constellations. For this reason, daytime is equal to nighttime, and the days are longer than the nights after this date.
