Outstanding. Had seen one similar on Astronomy Picture of the Day (APOD), and luckily I was able to google for it. Here's that link from a photo presented in 2007.
The phenomenon that creates this is just so cool. APOD should use your photo!
I'm gonna do that when getting a tripod collar ring for my new 70-300L.. I don't have any intention to pay the overpriced original from canon...