"Equinox" comes from the Latin words for equal and night, because it describes the two times each year when day and night are of equal length as the sun crosses the celestial equator.
The answer is autumnal equinox.
It is called equinox. Equinox happened 2 times per year on spring and autumn so called the name spring equinox and autumn equinox.
Autumnal equinox
The Autumn equinox.
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.
The vernal equinox is also known as the spring equinox.
The answer is autumnal equinox.
the special name for these two dates is the march equinox and the September equinox
In North America, the first day of fall is considered to be on September's equinox. Every year, there is another equinox around March 20.
Equinox is the name given when the day is made up of the same amount of day and night. There are two Equinoxes a year the Autumn Equinox and the Spring 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 Autumn equinox and the Spring equinox .
The autumnal equinox.
vernal equinox
That is the Vernal Equinox; as opposed to the first day of Fall's Autumnal Equinox.
The vernal equinox.
Equinox