Steven
About your photo. Its great but are you sure the SN is the blue star on the right hand arm?
The reason I ask is that I photographed that galaxy on the 4th May 2008 and the blue star is in the right hand arm as shown by your photo.
See the antenae shot
http://www.iceinspace.com.au/forum/s...hlight=antenae where I was testing out my new 127mm apo. The star is clearly there and also present in this image
http://news.softpedia.com/newsImage/...er-to-Us-2.jpg
Regards, Allan
Sorry, I thought this was a recent supernova until I saw that it refered to one in 2007. My apologies to my unwitting mistake - never knew that the S/N was still around after all this time.