NASA SDO - Big Sunspot, Big Effects
This is the sunspot region AR 1429 that generated several major solar storms recently. The video covers nine days (March 4 - 12, 2012). Notice how the spot is almost always changing as its magnetic fields realign themselves. The images are white light images called intensity grams. Credit: NASA SDO
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Solar astronomy
Added: 2813 days ago by
deek
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