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the Winter Solstice

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The Winter solstice, also known as midwinter, is an astronomical phenomenon marking the day with the shortest period of daylight and the longest night of the year.

A solstice is an astronomical event that occurs twice each year as the Sun reaches its most northerly or southerly excursion relative to the celestial equator on the celestial sphere.

Winter is the coldest season of the year in polar and temperate climates, between autumn and spring.

Astronomy is a natural science that studies celestial objects and phenomena.

The Winter Solstice explained in layman's terms by BOB LOVE

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In the Northern Hemisphere this is the December solstice and in the Southern Hemisphere this is the June solstice.

The December solstice, also known as the southern solstice, is the solstice that occurs each December, typically between the 20th and the 22nd day of the month according to the Gregorian calendar.

SH, Sh, sH or sh may refer to:

Winter Solstice in the Arctic. Fairbanks, Alaska. Time ... by EricOfAlaska

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The axial tilt of Earth and gyroscopic effects of its daily rotation mean that the two opposite points in the sky to which the Earth's axis of rotation points change very slowly.

In astronomy, axial tilt, also known as obliquity, is the angle between an object's rotational axis and its orbital axis, or, equivalently, the angle between its equatorial plane and orbital plane.

Rotation around a fixed axis is a special case of rotational motion.

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As the Earth follows its orbit around the Sun, the polar hemisphere that faced away from the Sun, experiencing winter, will, in half a year, face towards the Sun and experience summer.

In physics, an orbit is the gravitationally curved path of an object about a point in space, for example the orbit of a planet about a star or a natural satellite around a planet.

Summer is the hottest of the four temperate seasons, falling between spring and autumn.

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This is because the two hemispheres face opposite directions along Earth's axis, and so as one polar hemisphere experiences winter, the other experiences summer.

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More evident from high latitudes, a hemisphere's winter solstice occurs on the day with the shortest period of daylight and longest night of the year, when the sun's daily maximum elevation in the sky is at its lowest.

The polar regions of Earth, also known as Earth's frigid zones, are the regions of Earth surrounding its geographical poles.

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Although the winter solstice itself lasts only a moment in time, the term sometimes refers to the day on which it occurs.

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Other names are "midwinter", the "extreme of winter", or the "shortest day".

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In some cultures it is seen as the middle of winter, while in others it is seen as the beginning of winter.

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In meteorology, winter in the Northern Hemisphere spans the entire period of December through February.

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The seasonal significance of the winter solstice is in the reversal of the gradual lengthening of nights and shortening hours of daylight during the day.

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The earliest sunset and latest sunrise dates differ from winter solstice, however, and these depend on latitude, due to the variation in the solar day throughout the year caused by the Earth's elliptical orbit.

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Worldwide, interpretation of the event has varied across cultures, but many have held a recognition of rebirth, involving holidays, festivals, gatherings, rituals or other celebrations around that time.

A ritual "is a sequence of activities involving gestures, words, and objects, performed in a sequestered place, and performed according to set sequence."

A holiday is a day set aside by custom or by law on which normal activities, especially business or work, are suspended or reduced.

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