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Trigonometry tells us that the sine of a 30° angle is 1/2, whereas the sine of a 90° angle is 1. Therefore, the sunbeam hitting the ground at a 30° angle spreads the same amount of light over twice as much area (if we imagine the Sun shining from the south at noon , the north–south width doubles; the east–west width does not).
The Latinate names estival solstice (summer) and hibernal solstice (winter) are sometimes used to the same effect, [17] as are midsummer and midwinter. June solstice and December solstice refer to the months of year in which they take place, [ 18 ] with no ambiguity as to which hemisphere is the context.
The solstices are the dates that the Sun stays farthest away from the zenith but also in those cases it's high in the sky, reaching an altitude of 66.56° either to the north or the south. All days of the year, solstices included, have the same length of 12 hours. Solstice day arcs as viewed from 20° latitude. The Sun culminates at 46.56 ...
Arriving on the same day across the globe, a solstice occurs when the sun reaches its lowest or highest point in the sky during the year as a result of the Earth’s axis tilting to or away from ...
Upload file; Special pages; Permanent link; Page information; Get shortened URL; Download QR code; Print/export Download as PDF; ... and solstices on Earth [1] [2 ...
In many countries, the seasons of the year are determined by the solstices and the equinoxes. The term solstice can also be used in a broader sense, as the day when this occurs. The day of a solstice in either hemisphere has either the most sunlight of the year ( summer solstice ) or the least sunlight of the year ( winter solstice ) for any ...
The diagram uses neopagan labeling; Litha is the summer solstice, Yule is the winter solstice, Ostara is the vernal equinox, and Mabon is the autumnal equinox. Earth's seasonal lag is largely caused by the presence of large amounts of water, which has a high latent heat of freezing and of condensation. [1]
For that hemisphere, the winter solstice is the day with the shortest period of daylight and longest night of the year, when the Sun is at its lowest daily maximum elevation in the sky. Either pole experiences continuous darkness or twilight around its winter solstice. The opposite event is the summer solstice.