Autumnal Equinox: As of 4:00 a.m. today, fall has officially begun

Autumnal Equinox: As of 4:00 a.m. today, fall has officially begun
Autumnal Equinox: As of 4:00 a.m. today, fall has officially begun

Clouds in the city of Nafplio and a drop in temperature. APE-BE /APE-BE/BUGIOTIS EVANGELOS

From 4:04, just before midnight on Friday, September 23 autumn has formally begun as today is the autumnal equinox in the northern hemisphere, where of course Greece also belongs.

At the same time, in the southern hemisphere, they welcome Spring.

According to astronomers, the position of the Sun determines the equinoxes. In particular, during an equinox, the Sun crosses the celestial equator, passing from the southern hemisphere of our planet to the north. Considering that the Sun is in a vertical position relative to the equator, the center of the solar disk is an equal amount of time above and below the horizon of each place.

At the autumnal equinox, night and day are almost the same length. Then, in the Northern Hemisphere the day will get shorter and the night longer, until the latter reaches its zenith at the winter solstice in December.

in fact, in Athens the “equality” of day and night will occur a few days later, since on the day of the autumnal equinox itself, equal day-night occurs only in places directly on the Earth’s equator. In the other regions above or below the equator, this occurs a few days before or after the equinox. Thus, at Athens, which is about 38 degrees north of the equator, the equinox occurs after about four days.

Both the equinoxes and the solstices occur twice a year and mark the beginning of the seasons. Since ancient times, across the length and breadth of the Earth, such phenomena were celebrated by the peoples, who attributed mythical meanings to them.

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The article is in Greek

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