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The summer solstice is the day with the longest period of daylight and shortest night of the year in that hemisphere, when the sun is at its highest position in the sky. At either pole there is continuous daylight at the time of its summer solstice. The opposite event is the winter solstice. The summer solstice occurs during the hemisphere's ...
Xiàzhì or Geshi (Chinese and Japanese: 夏至; Korean: 하지(Haji); Vietnamese: Hạ chí; lit. summer's extreme) is the 10th solar term, and marks the summer solstice. It begins when the Sun reaches the celestial longitude of 90° (around 21 June) and ends when the Sun reaches the longitude of 105° (around 7 July). Xiàzhì more often ...
At local midnight the summer Sun culminates at 3.44°. Said another way, it does not set; it is the polar day. Solstice day arcs as viewed from either pole (90° latitude). At the time of the summer or winter solstices, the Sun is 23.44° degrees above or below the horizon, respectively, irrespective of time of day.
Summer will start this year at 4:51 p.m. on June 20. The summer solstice occurs when the northern hemisphere is at its maximum tilt toward the sun.
The summer solstice is the official kickoff of summer in the Northern Hemisphere. It occurs when the Earth's tilt toward the sun is at its maximum, making the sun appear at its highest point in ...
Summer or summertime is the hottest and brightest of the four temperate seasons, occurring after spring and before autumn.At or centred on the summer solstice, daylight hours are the longest and darkness hours are the shortest, with day length decreasing as the season progresses after the solstice.
Therefore, δ ☉ = +23.44° at the northern summer solstice and δ ☉ = −23.44° at the southern summer solstice. At the moment of each equinox, the center of the Sun appears to pass through the celestial equator, and δ ☉ is 0°. The Sun's declination at any given moment is calculated by:
As summer approaches, the Sun rises and sets become more northerly in the north and more southerly in the south. At the poles, the path of the Sun is indeed a circle, which is roughly equidistant above the horizon for the entire duration of the daytime period on any given day.