Hi Greg,
I'm not entirely sure I understand what you are asking about. I think it might be the phenomenon called Bailey's Beads. Bailey's Beads are basically rays of sunlight visible through the valleys between the mountains on the lunar surface. You can read more about them and see some photos in this story about an eclipse that occurred back in December 2001: http://science.nasa.gov/h...y2001/ast12dec_1.htm
The Exploratorium's web site also has a nice photo of Bailey's Beads and a solar prominence: http://www.exploratorium.edu/eclipse/what2.html
If this doesn't answer your question, let us know and maybe one of the other Solar Week scientists can help.
Kris