Vernal Equinox 2024 Images. The vernal equinox — is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses the celestial equator. Vernal equinox, two moments in the year when the sun is exactly above the equator and day and night are of equal length;

The start of astronomical spring, known as the vernal equinox, occurred yesterday, march 19, 2024, at 11:06 p.m. Browse 4,345 vernal equinox photos and images available, or search for first day of spring or stonehenge equinox to find more great photos and pictures.