Last night's attempt at C2017 K2 Panstarrs

[Varavall]

While I was waiting for the main target of the night to be in position I gave 45 minutes to Panstarrs. Not bad in my opinion, but constructive comments always welcome! There seems to be another fuzzy object above the tail. Any ideas?

SW 200pds, ASI1600MM-cool, Astrodon tru colour LRGB, 15x120s L, 2x120s for RGB, manually aligned and stacked in ASTAP and processed in GIMP.

[Paul M]

Lovely image.

As for the other fuzzy, It looks to me that one of your subs isn't registered with the others. You can see each star trail also has an "outlier" star image offset by the same distance and angle as the fuzzy is from the comet nucleus.

Edited July 21, 2022 by Paul M

[Varavall]

3 minutes ago, Paul M said:

As for the other fuzzy, It looks to me that one of your subs isn't registered

Thanks. I'll check that.

[Varavall]

14 hours ago, Paul M said:

the fuzzy

It was an error in the alignment of the luminance images, now it looks much better. I blame the long, grueling day I had sitting on the beach before processing 🤔