Sun in h-alpha 15/07/2012
Active region 1520, which gave a nice show on 12th July 2012, is leaving the visible solar disk. Bye, bye!
Just 1h after the big flare (X1.4) I caught this image using only 3s of image data just before clouds took away all view of the sun.
Imagery of AR1519/20 taken in between cloud passes on 12th July 2012. This was one of the larger sunspots until now during this year.