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14:14. A solstice is an event that occurs when the Sun reaches its most northerly or southerly excursion relative to the celestial equator on the celestial sphere. Two solstices occur annually, around June 21 and December 21. In many countries, the seasons of the year are determined by the solstices and the equinoxes .
Solstice, either of the two moments in the year when the Sun’s apparent path is farthest north or south from Earth’s Equator. In the Northern Hemisphere the summer solstice occurs on June 20 or 21 and the winter solstice on December 21 or 22. The situation is exactly the opposite in the Southern Hemisphere.
- The Editors of Encyclopaedia Britannica
12 mar 2024 · A solstice is an event in which a planet ’s poles are most extremely inclined toward or away from the star it orbits. On our planet, solstices are defined by solar declination —the latitude of Earth where the sun is directly overhead at noon.
Il solstizio è, in astronomia, il momento in cui il Sole raggiunge, nel suo moto apparente lungo l’eclittica, il punto di declinazione massima o minima. Il fenomeno è dovuto all'inclinazione dell'asse di rotazione terrestre rispetto all'eclittica; il valore di declinazione raggiunta coincide con l'angolo di inclinazione terrestre ...
Equinoxes and solstices are a result of two things: Earth’s tilt and its orbit around the Sun. Earth, like nearly all the planets, orbits the Sun in a tilted fashion. Earth spins once a day on its axis of rotation, an imaginary line running through the North and South Poles. The spinning Earth orbits the Sun once a year, tracing out an ...
The summer solstice occurs during the hemisphere's summer. In the Northern Hemisphere, this is the June solstice (20 or 21 June) and in the Southern Hemisphere, this is the December solstice (21 or 22 of December). Since prehistory, the summer solstice has been a significant time of year in many cultures, and has been marked by ...
21 dic 2017 · 487K views 6 years ago. What is the definition of a solstice, and when do they happen? Is the winter solstice always the first day of winter? Find out what causes these bi-annual astronomical...
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