... 2.05.2006 . ... Credit Copyright: Greg Piepol (sungazer.net) Explanation: An unusually active sunspot region is now crossing the Sun. The region , numbered 875, is larger than the Earth and has produced several solar flare s over the past week. ... Sunspot 875 , in the midst of erupting a large Class C solar flare , can be seen as the dark region to the upper right. ... May 2006 . ... 2005 2006 . ... Publications with keywords: sunspot - flare . Publications with words: sunspot - flare . ...