Goru

The winter solstice, or hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun. This happens twice yearly, once in each hemisphere. For that hemisphere, the winter solstice is the day with the shortest period of daylight and longest night of the year, and when the Sun is at its lowest arc in the sky. In each polar region, there is continuous darkness or twilight around its winter solstice. The opposite event is the summer solstice, which happens at the same time in the opposite hemisphere.

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