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The autumnal equinox is not in December. In the northern hemisphere it is in September. In the Southern Hemisphere it is in March. In December you have the winter solstice in the northern hemisphere and the southern hemisphere has the summer solstice. Equinoxes and Solstices happen on the 21st of their respective months, though occasionally then can be on the 20th or 22nd.
What else can I help you with?
What day and time does the autumnal equinox begin 2010?
September 22
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.
What day and night is the same length of the autumnal equinox or the vernal equinox?
Both.
What does autumnal equinox mark the first day of?
Autumn
How long is an autumnal equinox day?
12 hours
What is the opposite of a vernal equinox?
The longest day and shortest night occurs on the summer solstice. The shortest day and longest night occurs on the winter solstice. Midway between these points (2x a year) are the equinox, where the day and night are of equal length.
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 day in the year does fall begin?
This year it is September 22, at 5:18 pm, Eastern Daylight Time. This is the moment of the Autumnal Equinox.
Happy autumnal equinox?
The equinox happens on Sept. 22. It marks the first day of autumn.
