Sunday, February 13, 2011

Strongest Solar Flare of the Year

Sunspot 1158 has just unleashed the strongest solar flare of the year, an M6.6-category blast @ 1738 UT on Feb. 13th. The eruption appears to have launched a coronal mass ejection (CME) toward Earth. It also produced a loud blast of radio emissions heard in shortwave receivers around the dayside of our planet. NOAA has an M6.6-category blast on it. Solar flares are classified as A, B, C, M or X the highest.

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