Vernal Equinox 2024 Images Free. The vernal equinox — is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses the celestial equator. In other words, on the day of the vernal.

Standing stones at avebury at sunrise on the vernal (spring) equinox, designated a unesco world heritage site, the purpose of the ancient obelisks remains an enigma. It marks the moment when day and night are equal in length, and the sun.