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What else can I help you with?
What is the scientific name for the first day in autumn?
Autumnal equinox
What is the first day of autumm called in astronomy?
The autumnal equinox.
What is the first day of fall also known as?
the autumnal equinox
What is the name Of the first day Of Autumn?
The first day of autumn is called the autumnal equinox.
What is another name for the first day of Spring?
That is the Vernal Equinox; as opposed to the first day of Fall's Autumnal Equinox.
Happy autumnal equinox?
The equinox happens on Sept. 22. It marks the first day of autumn.
What does the equinoxes mark?
In the northern hemisphere, the autumnal equinox marks the first day of fall. An equinox happens twice a year, when the sun shines directly on the equator and the length of day and night is nearly equal.
What do you call the day that autum official begins?
The first day of Autumn, or the Autumnal Equinox
What term is used to represent the last day of summer and the first day of autumn?
Autumnal Equinox
What is the term for when days and nights are equal in length?
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.
When was the autumnal equinox in 1978?
Autumnal Equinox was 23. September in 1978
What is the difinition of autumnal equinox?
Google it. Or read what I have wrote: An Autumnal equinox occurs on September 2. It is a day when the day time approximately equals night time.
