Monday, June 20, 2011

Summer Solstice Google Doodle

Today (June 21st, 2011 Tuesday) Google is showing Special Doodle for Summer Solstice (i-e longest day time). This "First Day of Summer" Doodle was created by Takashi Murakami.

Takashi Murakami is a Japanese artist who works in both fine arts media—such as painting—as well as digital and commercial media.

The summer solstice occurs exactly when the Earth's and the moon's axial tilt is most inclined towards the sun, at its maximum of 23° 26'.

Sol + stice derives from a combination of Latin words meaning "sun" + "to stand still."
As the days lengthen, the sun rises higher and higher until it seems to stand still in the sky.

Countries (Including India) lying to the north of the equator witness"Summer Solstice" Today.

Summer Solstice results in the longest day and the shortest night of the year. The Northern Hemisphere celebrates in June, but the people on the Southern half of the earth have their longest summer day in December.

However, contrary to popular belief, the earliest sunrise and latest sunset do not coincide with the summer solstice.  For mid-northern latitudes, the earliest sunrise actually occurred on June 14, while the latest sunset is not due until June 27 .

Watch the below video to know how to measure the tilt of the Earth. If you measure it today (ie Summer Solstice Day) you will find the value as 23° 26'

Watch the below video showing Sunrise on the summer solstice.

Similarly, winter solstice occurs exactly when the axial tilt of a planet is farthest away from its star, depending on the polar hemisphere of reference.

Winter solstice usually occurs on Dec. 21 or 22 each year in the Northern Hemisphere, and June 20 or 21 in the Southern Hemisphere.

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