The Dutch Observatory

July 18, 2011 on 4:45 pm | In Sun | Comments Off

Did image later today, just before the sun disappeared behind the trees to the west.  Four nice sunspot groups AR1250, 51, 54 and 56, while another soon might be named.  In addition to the whole sun image, I also made a closup of Active Region 1251.  From the inverted image, one can nicely see that the sunspot has a light bridge.  (One of the reasons I like to include inverted light images).