Tuesday, December 12, 2006

Region 10930 produced a major X3.4/4B proton flare

Region 10930 changed as the positive polarity spots in the southern part of the main penumbra rotated eastwards. The magnetic delta structure became stronger. Further major flares are possible.

Region 10930 produced a major X3.4/4B proton flare peaking at 02:40 UTC on December 13. 4B is the maximum brightness on the brightness scale and occurs very rarely. Strong type II and IV radio sweeps were recorded and an intense proton storm started at Earth soon after the flare. It is likely that a major very fast Earth directed CME was caused by the flare.

Source: http://www.dxlc.com/solar/

0 Comments:

Post a Comment

<< Home