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Since the axial tilt of Earth is considerable (23 degrees, 26 minutes, 21.41196 seconds), at high latitudes the Sun does not set in summer; [8] rather, it remains continuously visible for one day during the summer solstice at the polar circle, for several weeks only 100 km (62 mi) closer to the pole, and for six months at the pole. At extreme ...
The only permanent settlement on Earth at these latitudes is the Amundsen–Scott scientific research station in Antarctica, whose winter personnel are completely isolated from mid-February to late October. The South Pole experiences this from about May 11 to August 1, [13] while the North Pole experiences this from about November 12 to January 28.
In fact, at any given time slightly more than half of the earth is in daylight. The 24 hours of summer daylight is known as the midnight sun that is famous in some northern countries. To the north, the Arctic Circle marks this 23.44° boundary. To the south, the Antarctic Circle marks the boundary. These boundaries correspond to 66.56° north ...
A contour plot of the hours of daylight as a function of latitude and day of the year, using the most accurate models described in this article. It can be seen that the area of constant day and constant night reach up to the polar circles (here labeled "Anta. c." and "Arct. c."), which is a consequence of the earth's inclination.
As the southern hemisphere celebrates the start of summer, those north of the equator will experience its opposite, the first day of winter. This year, it falls on Saturday 21 December at 9:21am ...
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 ...
People south of equator in places such as Chile, South Africa and Australia are having their winter solstice and the shortest day of the year there. ... will get a 3:54 a.m. sunrise and almost 19 ...
Places on the Arctic Circle have the longest total annual daytime, 4,647 hours, while the North Pole receives 4,575. Because of elliptic nature of the Earth's orbit, the Southern Hemisphere is not symmetrical: the Antarctic Circle, with 4,530 hours of daylight, receives five days less of sunshine than its antipodes.