Old Sunspot 1429 continues to be active while transiting the farside of the Sun. This morning (March 21, 2012), AR1429 produced a solar flare which resulted in a bright Coronal Mass Ejection (CME). SOHO photographed the cloud expanding at 1550 km/s (3.5 million mph).
The movie below shows the flare as captured by STEREO Behind and also the CME Plasma cloud by STEREO Behind COR2. Because this was a farsided event, the expanding plasma cloud will not be Earth directed.
A new sunspot is forming in the southern hemisphere and is now producing C-Class flares. This region should be numbered 1440 on Wednesday. Sunspots 1432 and new region 1439 rotated onto the western limb and 1434-1435 will soon follow. All other regions remain stable.
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