I was taking solar spectra yesterday for a Physics lab, and I found this strange phenomenon slightly to the left of the sun. I think it might be a solar prominence, but then again I know absolutely nothing about astronomy. What is it?
(The graph is intensity vs. wavelength)
EDIT: I can't get the image to show, but the link is
http://imgur.com/FfZxd. The absorption peaks are at 760.15 nm and 761.18 nm.