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Solstice Fast Facts
December 24, 2013 -- Updated 1838 GMT (0238 HKT)
A flock of birds fly home as the sun sets ending the longest day of the year in Lahore, Pakistan.
- The solstice happens twice each year when the sun is at either its northernmost or southernmost position
- Summer solstice will occur on June 21, 2014 at 10:51am UT in the Northern Hemisphere
- Winter solstice will take place on December 21, 2014 at 11:03pm UT in the Northern Hemisphere
(CNN) -- Here is a look at what you need to know about the solstice. The summer solstice will take place on June 21, 2014.
Summer solstice in the Northern Hemisphere occurs on June 20, 21, or 22, when the sun reaches its most northerly point, directly overhead at the Tropic of Cancer (23 degrees 27 minutes north latitude). The summer solstice is the longest day of the year and marks the beginning of summer.
Winter solstice in the Northern Hemisphere occurs on December 21 or 22, when the sun appears at its most southerly position,directly overhead at the Tropic of Capricorn (23 degrees 27 minutes south latitude). The winter solstice is the shortest day of the year and marks the beginning of winter. It is the exact opposite in the Southern Hemisphere.
A solstice is different from an equinox, the two times each year when the sun is directly above the Earth's equator and day and night are of equal length. Equinoxes mark the beginning of spring (March) and fall (September).
Solstice loosely translated in Latin is "sun stands still". For several days before and after each solstice the sun appears to stand still in the sky, i.e., its noontime elevation does not seem to change from day to day.
Historically, the solstice has been celebrated by numerous cultures around the world. Thousands of people annually celebrate the summer solstice at Stonehenge in Wiltshire, England.
At sunrise at Stonehenge on the longest day of the year, the rising sun appears behind one of the main stones, creating the illusion that the sun is balancing on the stone.
The site was closed for 16 years after rioting broke out between police and revelers for several years at solstice gatherings. Stonehenge was re-opened to the public on Solstice in 2000.
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