HEAPOW: Waking Up (2010 Aug 09)

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bystander
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HEAPOW: Waking Up (2010 Aug 09)

Post by bystander » Mon Aug 09, 2010 5:05 pm

Image HEAPOW: Waking Up (2010 Aug 09)
The Sun, after a long sleep, is finally waking up. And like any irascible sleeper vigorously throwing off the covers. In this case the covers are composed of high-energy electrons and protons being shot out into space at a tremendous rate. The image above, obtained by the Solar Dynamics Observatory on August 1, shows almost the entire earth-facing side of the sun erupting at once. In this extreme ultraviolet image you can see evidence of extremely ultraviolent activity: a C3-class solar flare (white area on upper left), a solar tsunami (upper right), multiple filaments of magnetism lifting off the stellar surface, large-scale shaking of the solar corona, and a coronal mass ejection. The coronal mass ejection, or CME, showered the earth with charged particles, producing spectacular aurora (northern lights) as far south as Iowa and Telemark, Norway.
Activity from Aug 1 CME Subsides
http://asterisk.apod.com/vie ... 31&t=20499

APOD: The Not So Quiet Sun (2010 Aug 06)
http://asterisk.apod.com/vie ... =9&t=20556
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