For general purposes the summer solstice is the longest day/ shortest night of the year. Usually around 21 or 22 December (in the Southern Hemisphere). More particularly it is the moment when the Sun reaches its most extreme declination +/- 23.5 deg.
The solstice occurs at regular yearly intervals - regular by the celestial calendar. Our yearly calendar, however, is modified to accommodate a set number of 24-hour periods (days) per year and then we catch up with the celestial calendar in leap years. If you look at the universal times of the equinoxes and solstices in successive years: http://en.wikipedia.org/wiki/Solstice you will see changes of approximately 6 hours from one year to the next and the 4-year cycle due to the leap years.
The solstices are generally on June 21 and December 21; the equinoxes are usually on March 21 and September 21. These dates can vary a day or two either way, depending on the cycle of leap years.
Imagine a round football set (up to its middle) into the center of a circular table. Make a mark 'X' at one point on the table edge and another 'Y' on the opposite side. Then take an Orange and put a pencil through the middle so that it sticks out either end. Hold the Orange at point 'X' at the table edge so that the pencil is not straight up and down (compared to the table top) but tilted at about 30 degrees away from the football. Now holding the Orange with the same tilt move it round the table to point 'Y'. You will see that the pencil is now pointing towards the football.
If the football was the Sun, the Orange the Earth and the pencil the axis of the Earth's rotation, then points 'X' and 'Y' would be the summer and winter solstice positions.
The summer solstice is when 'the pencil above the table' - the axis of rotation - is facing the sun (it is now winter in the southern hemisphere which is pointing away form the sun). The winter solstice is when 'the pencil above the table' - the axis of rotation - is facing away from the sun (it is now summer in the southern hemisphere which is pointing towards the sun).
A solstice is a place in the earth's orbit around the sun. There are two of them. They're the places
where neither of the earth's poles is tilted toward or away from the sun. The earth reaches those
places in its orbit on June 21 and December 21 or 22.
The Earth is tilted on its axis of rotation, because of this the length of day varies depending upon your latitude and the time of year.
Because the Earth is tilted as it orbits the Sun.
The summer Solstice is the result of the tilt of the earth's axis putting the sun at its high point in the Northern Hemisphere.
The sun's UV rays strike more directly at a given place at a given time in the summer season and hit the earth at an oblique angle during the winter time.
Longer daylight then nighttime is a summer solstice
summer solstice on june 21-22 Winter solstice on december 21
the answer is 5/7
December 21st, at the very same moment as the winter solstice in the north.
In all parts of the world, in December and July occur soltices and in march and September, equinoxes.
The winter solstice (and the summer solstice) ocur for a very interesting reason. The sun 'moves' around the earth in a path that is very tilted to the earth's equator. When the sun is farthest on this path north of the equator, it is the summer solstice. And when it's farthesr south of the equator, it's the winter solstice. From the northern hemisphere, that is.
It is the Winter Solstice
summer solstice on june 21-22 Winter solstice on december 21
the answer is 5/7
the answer is 5/7
September 22.
December 21st, at the very same moment as the winter solstice in the north.
Winter solstice will occur on or around December 21, when the sun is at its greatest distance from the celestial equator.
The time between sunrise and sunset is a little longer each day from the December solstice to the June solstice in the northern hemisphere and from the June solstice to the December solstice in the southern hemisphere.
Around the time of the summer solstice.
1/7 chances
December 22, 2012 is when it is this year
The solstices occur when the Sun reaches its maximum angular distance above or below the sky's "celestial equator". At local noon, at the solstice, the Sun is at its highest in the sky (summer solstice) or lowest (winter solstice) for the year. The solstices occur around the 21st of June and 21st of December. The summer solstice is in June in the northern hemisphere and in December in the southern hemisphere. At the summer solstice, the Sun is overhead at local noon on the tropic of Cancer (northern hemisphere) and the tropic of Capricorn (southern hemisphere).