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Home Tips > Tips By Category > Tips you can implement daily Did you ever wonder why the days are so long in the summer and so short in the winter?
The length changes throughout the year. In the summer, around June 21 or 22, we experience the summer solstice, which is the longest day of the year. And in the winter, December 21 or 22 is the winter solstice, or shortest day.
But wait! If you live in Australia, you experience the opposite—the longest day is in December and the shortest is in June.
A solstice occurs twice a year, whenever Earth's axis tilts the most toward or away from the Sun, causing the Sun to be farthest north or south at noon. The name is derived from Latin sol (sun) and sistere (to stand still), because at the solstice, the Sun stands still in declination, that is, it reaches a maximum or a minimum. The term solstice can also be used in a wider sense as the date (day) that such a passage happens. The solstices, together with the equinoxes, are related to the seasons. In some languages they are considered to start or separate the seasons; in others they are considered to be center points (in English, in the Northern hemisphere, for example, the period around the June solstice is known as midsummer, and Midsummer's Day is the 21 June).
Summer solstice and winter solstice are the most common names. However, these can be ambiguous since seasons of the northern hemisphere and southern hemisphere are opposites, and the summer solstice of one hemisphere is the winter solstice of the other.
The actual day of season and the Latitude (0° at the Equator to 90° at the Northpole) both influence the length of the day.
The perceived way of the sun around the planet can be viewed at as the boundary circle of the planet's disc. However, this constellation (in which the sun apparently circles along the disc's boundary) applies only at equinoxes and only at the Northpole. The further away one is from the Northpole (towards the equator), the more the surrounding circle is tilted along the West-East axis, until it is completely upright (perpendicular to the planet's disc) at the equator.
Furthermore, there is also a shift of the circle away from the disc, along the obliquity of the ecliptic (connecting the centers of the two circles at an angle of 23.439°). This shift can be "upwards" (max. distance at the Summer Solstice) or "downwards" (max. distance at the Winter Solstice) depending on the actual Latitude.
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