Autumnal (fall) equinox occurs around which date?

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Multiple Choice

Autumnal (fall) equinox occurs around which date?

Explanation:
The autumnal equinox is the moment when the Sun crosses the celestial equator moving south, so day and night are about equal in length. In the Northern Hemisphere this occurs in late September, typically around September 22 or 23. Among the options, the date around September 23 matches the autumnal equinox, so that date is the best choice. The other dates correspond to a vernal (spring) equinox in March, the summer solstice in June, and the winter solstice in December, which are not the autumnal equinox.

The autumnal equinox is the moment when the Sun crosses the celestial equator moving south, so day and night are about equal in length. In the Northern Hemisphere this occurs in late September, typically around September 22 or 23. Among the options, the date around September 23 matches the autumnal equinox, so that date is the best choice. The other dates correspond to a vernal (spring) equinox in March, the summer solstice in June, and the winter solstice in December, which are not the autumnal equinox.

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