Vernal Equinox 2025 Images 2025. The vernal equinox — is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses the celestial equator. The vernal equinox — is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses.
These celestial events transpire when the sun aligns. The vernal equinox — is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses the celestial equator.
