Sunspot AR1748 coming towards us
Sunspot AR1748 is still on the limb - another day or two and it will be facing directly at us.
Spaceweather is
keeping track of it:
X-FLARE THREAT CONTINUES
Sunspot AR1748 has already unleashed four X-class solar flares, but it might not be finished. The active region continues to grow beneath a delta-class magnetic field that harbors energy for powerful eruptions. NOAA puts the odds of another X-flare today at 60%.
And this:
POSSIBLE CME IMPACT ON MAY 17
A coronal mass ejection (CME) hurled into space by the X1-flare of May 15th might deliver a glancing blow to Earth's magnetic field on May 17th. NOAA forecasters estimate a 40% chance of polar geomagnetic storms when the cloud arrives. High-latitude sky watchers should be alert for auroras.
Posted by DaveH at May 16, 2013 11:14 AM