The seeing does make a substantial difference, doesn't it.
Lester, just a thought, in Astra Image try doing an alignment just on Ganymede. With such a nice image scale I think you may find some detail on Ganymede. I mean some colour contrast, darker and lighter areas.
Do one alignment on Ganymede and another version of the same image but concentrating on the alignment of your RGB channels with Jupiter.
This should give you the best possible Jupiter and Ganymede on different versions of the same image. Then cut and past the good version of Ganymede onto the best version of Jupiter.
Another good effort although the poorer seeing has robbed you of the crispness and finer detail recorded in your previous session. However, it is nice to see the pairing with Ganymede once more, sort of puts the scale of things into perspective!
Trevor thanks for the tip of aligning on Ganymede, I will try it.
Anthony, I am just going by the Jupiter2 program that had Ganymede closest and Io second out from Jupiter. Unless there is a error with the Jupiter2 program.
Thanks Mike; the NEB outbreak, I will remember that and watch it with interest.
Trevor I tried the alignment on Ganymede in Astra Image but didn't get any improvement. I enlarged the image 200% but couldn't get it any better as the 1 pixel movement was too much.
If I get good conditions again and use the extention tube, that will help to get a bigger disc, and perhaps some detail.
