autumnal equinox
Noun
Meaning
(astronomy) the equinoctial point that lies in the constellation of Virgo
September 22
Source: WordNetSynonyms
Antonyms
Hypernyms
Examples
In the southern hemisphere, the vernal equinox occurs in September and the autumnal equinox in March.
“As predicted by Ji-Ah, Tic did not survive the autumnal equinox.
The second reason why we call it the Harvest Moon is because it happens closest to the autumnal equinox.
Early-morning rain clouds parted and the sun illuminated psychics, gypsy dancers and henna healers who all came together to celebrate the autumnal equinox.
By law, the beginning of each year was set at midnight, beginning on the day the apparent autumnal equinox falls at the Paris Observatory.
In particular, the committee noted that the autumnal equinox of year 144 was predicted to occur at 11:59:40 pm local apparent time in Paris, which was closer to midnight than its inherent 3 to 4 minute uncertainty.