Science | August 03, 2010 | 5 comments

Sunrise Photograph of Angry Sunspot : Big Pic

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Aug. 3, 2010 -- On Sunday, the sun underwent a complex magnetic eruption triggered by a flare near a sunspot (designated "sunspot 1092"). Space observatories were able to see the C3-class flare, causing a filament (an extended loop of magnetic field lines filled with cooler plasma) 100,000 kilometers away to erupt at the same time.

It turns out that sunspot 1092 is such a prominent dark feature on the solar photosphere that it can also be seen on Earth, at sunrise, without having to use a special solar filter or telescope.

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