7.09.2009

Sun's storms set to intensify

http://www.gympietimes.com.au/story/2009/07/07/magnetic-storms-on-the-suns-surface-are-set-to-int/
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Astronomers are claiming that Earth is witnessing the biggest and most powerful Sunspot ever seen and the sunspot is yet to peak in intensity.
A sunspot is a magnetic storm on the surface of the sun and the area of the spot is colder than the normal surface.
The normal surface is about 5000 degrees, the temperature of a sunspot is about 3000 degrees.
[...]
This newest sunspot is thought to be 60 to 80 times the size of Earth and has occurred on the side of the sun, which is in view of Australia.
Wappa Falls Observatory head astronomer Owen Bennedick describes the sunspot shape like the letter S and thinks it to be approximately 150,000 km long and 30,000 km wide.
[...]
The flares have been so bright that NASA has had trouble taking accurate pictures of the sunspot.
[...]
Since the last sunspot, two years ago, no more had been seen until Sunday, this latest one considered the most powerful yet.
Read more...
[Also visit Japan's Solar Real-time Magnetosphere Simulation, at www2.nict.go.jp]
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