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M6.9 coronal mass ejection, G1 geomagnetic storm watch

SOHO/LASCO coronagraph imagery is now available to analyse the coronal mass ejection that was launched during the M6.9 solar flare from yesterday. Good news: this coronal mass ejection indeed has an earth-directed component. A minor G1 geomagnetic storm watch is in effect for 21 and 22 December.

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The solar wind speed is currently moderately high (520 km/sec.)

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