The date of this event is not fixed, but varies between 20 and 21 June. This happens because every year the solstice is delayed by about six hours compared to the previous year, but it realigns every four years in correspondence with the leap year, designed precisely to avoid the mismatch between seasons and calendar in the long term.
The Latin word solstice It’s composed by sol, referring to the Sun, and from the theme of the verb stare, meaning to stop. The solstice literally means that the Sun stops rising with respect to the equator, as it reaches its maximum height. On the shortest night of the year, it will also be possible to watch the falling stars: in 2021 they are in fact in favor of the observation of the lambda Sagittaridi, luminous meteors, whose radiant (ie the point from which they seem to originate) is found in the constellation of Sagittarius.
Several peoples of antiquity they celebrated this the summer solstice with rites and celebrations. Traces of it still remain today on the site of Stonehenge, in England, where thousands of people still gather between 20 and 21 June to celebrate the beginning of summer. At the moment of the solstice, the structure composed of three monoliths arranged to form a sort of door, called the Heel Stone, is in fact crossed by the rays of the Sun.
June 21, 2021 (change June 21, 2021 | 08:15)
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