The Super Cold (And Awesome) Clouds Of Saturn
By Savannah Cox
Clouds Of Saturn
In the early 1980s, a Voyager mission discovered a curious hexagon on Saturn's north pole. Incredibly enough, just one side of the hexagon is 8,600 miles long, or more than Earth's diameter. The jury is still out as to why such a shape appears on the planet, but most astronomers believe it is due to a standing-wave pattern within Saturn's atmosphere.
It was also Voyager that discovered Saturn's finer clouds patterns. In the upper cloud layers, temperatures are around 100-160 Kelvin, or really, really cold.
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Deepak Punjabi
Baguio City
Saturn: the hexagonal storm
A persisting hexagonal wave pattern around the north polar vortex in the atmosphere at about 78°N was first noted in the Voyager images.
The sides of the hex are each about 13,800 km (8,600 mi) long, which is longer than the diameter of the Earth. The entire structure rotates with a period of 10h 39m 24s (the same period as that of the planet's radio emissions) which is assumed to be equal to the period of rotation of Saturn's interior. The hexagonal feature does not shift in longitude like the other clouds in the visible atmosphere.
The pattern's origin is a matter of much speculation. Most astronomers believe it was caused by some standing-wave pattern in the atmosphere. Polygonal shapes have been replicated in the laboratory through differential rotation of fluids.
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Posted by: Deepak Punjabi <indigoblue2005@yahoo.com>
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