Sunspot 1429 blasted another CME while transiting the farside of the Sun

sunspot-1429-blasted-another-cme-while-transiting-the-farside-of-the-sun

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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