View Full Version : Astrophotos: “Bad Boy” Active Region 1339

2011-Nov-06, 07:00 PM
The largest sunspots since 2005 are now visible from the Earth. These huge sunspots have been slowly rotating to face the Earth since November 3, 2011. The largest of these sunspots, Sunspot AR 1339, is said to be 17 times the Earth’s width. This region of the Sun has caused massive solar flares which can [...]

More... (http://www.universetoday.com/90739/astrophotos-active-region-1339/)