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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.
- Equinox
equinox, either of the two moments in the year when the Sun...
- Seasons
Season, any of four divisions of the year according to...
- Autumn
autumn, season of the year between summer and winter during...
- First Day of Fall
The autumnal equinox is one of only two days—the other is...
- Equinox
18 wrz 2017 · The 2024 fall equinox—also called the autumn equinox—takes place on Sunday, September 22, 2024. The fall equinox is not on the same day each year, though it always falls between September 21...
15 wrz 2024 · While meteorologists like to call fall at the beginning of September, astronomical autumn starts later, on the autumnal equinox. This year, it falls on Sunday, Sept. 22 at 8:44 a.m. EDT (12:44...
22 wrz 2023 · The Northern Hemisphere’s spring — or vernal — equinox can land between March 19 and 21, depending on the year. Its fall – or autumnal — equinox can land between Sept. 21 and 24.
12 wrz 2024 · The autumnal equinox (as well as spring equinox) is the moment when neither of the Earth’s hemispheres is inclined towards or away from the Sun. When is it? In the Northern Hemisphere, the closest autumnal equinox will take place on September 22, 2024, at 12:44 GMT (08:44 a.m. EDT).
What the autumn equinox 2024 means. The term equinox is derived from the Latin for ‘equal night’. It reflects how on these dates, outside of the polar regions, the Sun will be above the horizon for as long as it is below it. So why the extra daylight, which ranges from a few minutes at the equator to over 20 minutes nearer the poles?
Astronomically, the September equinox is the autumnal, or fall, equinox marking the end of summer and the beginning of fall (autumn). The fall season ends on the December solstice , when astronomical winter begins.
