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The September equinox is the moment the Sun crosses the celestial equator —an imaginary line in the sky above Earth’s equator — from north to south. This happens on September 22, 23, or 24 in most years. 10 facts about the September equinox.
The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year , the September equinox may occur from September 21 to 24.
Sep 24, 2011 · What is it? It’s a milestone in Earth’s orbit around the sun. At an equinox, the sun appears directly above Earth’s equator. At the September equinox, it’s crossing from north to south. When is...
On September 22, 2024, the day and night are almost equal in most locations. Here are 10 facts about the first day of astronomical fall (autumn) in the Northern Hemisphere. September is North's fall equinox. ©iStockphoto.com/Givaga.
The September equinox marks the start of fall in the Northern Hemisphere and has inspired ancient myths, religious festivals, and customs. Ripe grapes in September. Most traditional celebrations of the autumnal equinox are associated with harvest.
In the Northern Hemisphere, the March equinox is called the vernal or spring equinox while the September equinox is called the autumnal or fall equinox. In the Southern Hemisphere, the reverse is true. During the year, equinoxes alternate with solstices.
Apr 19, 2024 · September. autumnal equinox, two moments in the year when the Sun is exactly above the Equator and day and night are of equal length; also, either of the two points in the sky where the ecliptic (the Sun’s annual pathway) and the celestial equator intersect.
