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.

Tags: cme, farside

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