Why Doesn't Autumn Start on the 21st Like Other Seasons, but on the 23rd?

Telegrafi

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IndexHR

Lean Left

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The official astronomical start of autumn in the Earth's northern hemisphere, known as the autumnal equinox or equinox, occurs this year on Wednesday, September 23. Every year in September, we ask the same question: when exactly does autumn begin, what is the equinox, and why do spring, summer, and winter come on the 21st of the month, and autumn only on the 23rd? While astronomers calculate the exact start of autumn to the minute based on the p…

bokanews.me

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Astronomical autumn begins on Wednesday, September 23, 2026, at exactly 2:05 a.m. This moment marks the autumnal equinox, when the Sun's rays fall perpendicularly on the Earth's equator. This makes day and night approximately equal in duration, after which days in the Northern Hemisphere become shorter and nights longer. Autumn this year will last […] The post Autumn arrives during the night was first seen on Boka News.

rador.ro

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Astronomical autumn begins tonight: the equinox will occur at 3:05 a.m., according to data on the Astronomical Observatory website "Admiral Vasile Urseanu. As the specialists explain, the astronomical longitude of the Sun will reach 180°, and in relation to the Earth it will rise and put even in the eastern cardinal points and [...]

Quotidiano Nazionale

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Myths to be debunked: it is not always September 21, day and night do not have exactly the same duration, the weather fall does not coincide with the astronomical one but begins first

Jurnalul de Arges

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The autumn equinox of 2026 takes place on Wednesday, September 23, at 03:05 a.m., Romania's time, and marks the beginning of astronomical autumn in the northern hemisphere. From this moment, the days begin to shorten gradually, and the nights become longer. When the autumn equinox takes place in 2026 the autumn equinox takes place on the night of 22 to [...]

azedu.az

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In 2026, autumn will enter Azerbaijan on September 23 at 04:05, thus astronomical autumn will begin in the northern hemisphere, and astronomical spring in the southern hemisphere. This was reported to AzEdu.az by the N. Tusi Shamakhi Astrophysical Observatory. It was noted that during the annual movement of the Sun, at two points - spring and autumn - the...