Sunday, December 21, 2014

Solar Image: 22 Dec 2014

I had to image in between brief moments of sunlight through gaps in the clouds. Seeing wasn't that good so I opted to do some 3D isophote rendering of the three largest transit-ARs. The two large sunspot groups receding from the solar disk have been actively flaring; in fact AR (1)2242  produced an intense X1.8-class flare on Dec 20 00:27 UT.