PICK OF THE WEEK
 
Pick of The Week
 
 

Another Proton Storm (February 3, 2012)


Hi-res TIF image (4.5M)

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An X1.7 flare (largest category) and a coronal mass ejection (CME) erupted from the Sun (Jan. 27-28, 2012) from the same active region that produced a smaller but Earth-directed storm a few days earlier. This resulting solar storm was not squarely Earth-directed, but the clouds of high-energy protons that it emitted continued to hit the SOHO spacecraft detectors for over a day and did generate a minor radiation storm on Earth. (SOHO is about a million miles towards the Sun from Earth.) The CME raced away from the Sun at a fast at 2500 km/s or 5.6 million mph clip.

 

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