The Sun Online and solar activity. December 13, 2013

The most active region the last 24 hours were NOAA AR 1917 near the central meridian and 1921, 30 degrees east. We expect more C-flares and a chance of 40% for M-flares.
The C-flaring activity of yesterday December 12 was associated with two plasma eruptions: the flare from NOAA AR 1912 was associated with a SW oriented plasma eruption around 3UT, the flare from NOAA AR 1917 was associated with a SE oriented plasma eruption around 5UT. We don’t expect the CME’s to arrive at Earth.Geomagnetic conditions are quiet at the moment. The northern coronal hole can have a geomagnetic impact: a Kp of 4 is possible from tomorrow onwards.
SIDC

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 12/13/13
Time UT: 17:00
Exposure 0.8 sec.

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