This is M31 - Andromeda Galaxy. Another nemesis of mine. This one was a battle as I struggled to get my Canon 600D to image anything I could use. The camera was fine, but I struggled with dew, focus, guiding etc. And I didn't know how to take flats, so this lacks all calibration. The colours are a bit off, but it's my first guided image and I'll keep it as it is as a fond memory of the early struggles.
SW ED80 and MS Webcam guiding
248 minutes in total, and I think 2 minute subs.
Edited in Canon Utilities