The solstice is the point in Earth's orbit where the Sun reaches its highest or lowest position in the sky at noon. This results in the longest day (summer solstice) or the longest night (winter solstice) of the year.
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The summer solstice occurs around June 21st in the Northern Hemisphere.
The winter solstice occurs around December 21st in the Northern Hemisphere.
During a solstice, one hemisphere experiences its maximum tilt towards or away from the Sun.
Solstices mark the beginning of astronomical summer and winter.
At the poles, a solstice can result in continuous daylight or darkness for up to six months.
The angle between Earth's rotational axis and its orbital plane, approximately 23.5 degrees.
Tropic of Cancer: The latitude line located at approximately 23.5 degrees North, marking where the sun is directly overhead at noon on the summer solstice.