The active regione 1149 produced a M-class flare before becoming invisible behind the western limb of the Sun.
This is the video (TNX NW7US):
http://www.youtube.com/watch?v=hMCgrJWTtR0
This is the video (TNX NW7US):
http://www.youtube.com/watch?v=hMCgrJWTtR0