Sunday, June 20, 2010

Happy Summer.............

Happy Summer..............Xing xia ji. (Pronounced jing jia g)

See full size image

Summer begins Monday, which is officially summer solstice for the Northern Hemisphere.

Earth is tilted on its axis 23.5 degrees, so it leans one way as it spins around its axis while orbiting the sun. On June 21 this year (some years it's June 20), the North Pole is pointing toward the sun as much as is possible. (Winter solstice occurs when the top half of our planet, everything north of the equator, faces directly away from the sun, leaving the North Pole in complete darkness.)

The sun will be as high in the sky as it can go at 7:28 a.m. EDT (11:45 UTC) and will stay in the sky for a fraction of a second longer than the day prior or the day after.

Since Monday marks the sun’s peak, you might wonder why June 21 doesn't typically mark summer's peak heat. The reason has to do with the slow pace at which oceans heat up and cool down. By mid-June the oceans of the Northern Hemisphere are still cool from winter's chill, delaying the peak air temperatures by a month and a half, according to NASA.

No comments:

Post a Comment