(n) :
the intersection of the ecliptic (apparent path of the sun) with the celestialequator. Vernal Equinox is the intersection that the sun crosses about March 20; autumnal equinox denotes the crossing point about September 23
(n) :
the intersection of the ecliptic (apparent path of the sun) with the celestialequator. Vernal Equinox is the intersection that the sun crosses about March 20; autumnal equinox denotes the crossing point about September 23