Wednesday, 4 November 2015 - 14:45 UTC
It took a long time but finally sunspot region 2443 seems to deliver. This earth-facing sunspot region produced at 13:52 UTC a long duration M3.7 (R1-minor) solar flare.
Early indications show that a coronal mass ejection has likely been launched following this solar flare as NOAA reports Type II and IV radio sweeps and SDO shows darkening of the corona, something which is knows as coronal dimming and this is an excellent sign that a coronal mass ejection has been launched.
ALERT: Type II Radio Emission Begin Time: 2015 Nov 04 1343 UTC Estimated Velocity: 955 km/s
ALERT: Type IV Radio Emission Begin Time: 2015 Nov 04 1351 UTC
Image: SDO animation from the SIDC showing coronal dimming and a large-scale coronal propagating front. Classic signs that a coronal mass ejection has been launched.
An earth-directed component is very likely and more information will be provided once we have SOHO coronagraph footage.
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