Sunspot 10486--October 28, 2003. The large sunspot just below the center of the sun erupted on 10-28 with a large Coronal Mass Ejection that several days later gave rise to the beautiful Aurora Borealis that was seen on 10-29 throughout the Northern Hemisphere. On November 04, just prior to rotating out of view, sunspot 10486 erupted with the largest CME ever recorded. Click here to see the Aurora display as seen above Colorado Springs. Technical: Canon 10D, Brandon 130 f/8.