Tony,
I just tried photostitch with the 2 pics i just posted of Eta (well, what I think is Eta Carina) and it looks pretty cool, Ill refine it a bit more but I think that was a great idea you had!
cheers
Nice try Andrew...it is too red but it was needed to bring out the detail....lol
Frank the idea of joining 2 images is not new...lots of members here have merged multiple images together with great success, my point was it's very easy to merge images together but where I had a lot off difficulty was because the images were taken so early in the night when the target was very low on the horizon at 8:30pm and because of this their was plenty of skyglow and turbilence to consider...merging 2 images with different background colors was the difficult part...thats why the background is a bit too dark for my liking....but it was all fun...took 4 times what it should have but never the less was fun....hehehe