Spring and Autumn/Fall, for the Northern Hemisphere spring equinox is around March 21st and Autumn/Fall Equinox is around September 21st and for the Southern Hemisphere its the exact opposite.
fall equinox partial equinox
It is called equinox. Equinox happened 2 times per year on spring and autumn so called the name spring equinox and autumn equinox.
The adjectives vernal and autumnal mean "of spring" and "of autumn (fall)" respectively. The equinox, when the day and night are even, occurs twice a year. Once in spring and once in autumn (fall) as we move from the extremes of the summer and winter solstices. Therefore we have a vernal equinox (in spring) and an autumnal equinox (in autumn/fall).
The word is "equinoctial" = equal day and night. It occurs twice a year, on the first day of Spring, and the first day of Autumn.
Autumn equinox and spring equinox I believe...
At the Spring and Autumn Equinox, the sun is directly over the equator which is at 0 degrees latitude.
MARCH, APRIL, MAY COMES AS AUTUMN
The Autumn equinox and the Spring equinox .
through the fall and the spring equinox alot of things happen during the fall and spring equinox
The Vernal Equinox determines the first day of spring. The Autumn Equinox is what determines the first day of fall.
The spring and autumn equinox.