Sunspot 1106 (last time it faced Earth it was named 1100) is seen here by the STEREO Ahead spacecraft at the end of August and the beginning of September 2010, when the sunspot was on the far side of the Sun. As you can see during those two days, it was one actively sputtering spot.
A very busy active region popped off about ten blasts of solar material over a two-day period (Aug. 31-Sept. 2, 2010). With this composited image and movie three instruments on the STEREO (Ahead) spacecraft, we can see the flares and coronal mass ejections occur on the Sun (in extreme UV light), then follow the clouds of particles as they expand in the lower corona (with the COR1 instrument) and further out into space (with the COR2 instrument).
Since these storms were on the far side of the Sun, they did not produce any effects on Earth. However, solar rotation will bring this active region into view of us at Earth sometime about September 10 or 11. The two sets of movies show all three instruments in one or a closer view of just Sun with the COR 1 instrument.
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