I wasn't able to use the data from Kelling to combine with the High Halden data I did at Mark's as the orientation was too far out for DSS to stack.
However I have now found out how to align in Maxim and have had another go at combining the data from both sessions.
I am not sure whether it has improved the image or not, I "think" it might be slightly smoother, but I'll leave the opinion to you since after looking at it for some time it needs a fresh pair of eyes.
Original image and thread:
http://forum.orpington-astronomy.org.uk/index.php?topic=7852.0
Now the combined data is:
ED80, Modified Canon 450D as far as I recall no CLs filter
Kelling Heath Sept 2012 19 x 5mins
High Halden 1-10-11 39 x 5mins
Giving a total of 4 hours 50mins
(http://gallery.orpington-astronomy.org.uk/albums/userpics/10047/normal_M31_HH___Kelling_51_x_5mins_ED80_Sept_2011_forum_size.jpg)
Larger image (http://gallery.orpington-astronomy.org.uk/albums/userpics/10047/M31_HH___Kelling_51_x_5mins_ED80_Sept_2011_forum_size.jpg)
Previous larger image (http://gallery.orpington-astronomy.org.uk/albums/userpics/10047/M31_High_Halden_1-10-11_31_x_5mins_800_ISO_ED80_OAS_size.jpg)
(Edit: Changed enormous images to links -- Rick)
I think the latest looks a lot noisier Carole
Thanks Fay. Well there is no logic in that unless I screwed up the processing.
Carole
Sorry, Carole. I agree with Fay, it does look a little noisy :(
Maybe I did more noise reduction on the previous version.
Carole