50% illuminated Moon from 7.9 - Mosaic and closeups all in saturated RGB

[ONIKKINEN]

All taken with my 8'' carbon newtonian and an ASI678MC. The full disk image was taken at prime focus through a paracorr at 1018mm focal length, the barlowed ones through an APM 2.7x coma correcting barlow at a reduced, roughly 2.5x barlow factor.

3 panel mosaic, 3000 frames each with 20% best stacked:

Archimedes, Aristillus, Autoclys and surroundings:

Ptolemaeus, Alphonsus, Arzachel and surroundings:

The barlowed images have a slight comatic look to them, especially towards the top left. I had rearranged some focuser accessories and now could no longer reach focus with the imaging train fully inserted, so the barlow train was slightly hanging out of the focuser which is likely the culprit for that. Something to fix for the next outing. The mosaic came out well, but this imaging scale is very forgiving so it often does. Really enjoying the 678MC + 1018mm focal length combo for Lunar with its relative ease of producing a full disk image. Still 80 gigabytes though...

Seeing was average at best with very thin high cloud above which messed with the levels occasionally. Still could have been a lot worse so no major complaints.

-Oskari

[geeklee]

Super shots Oskari, especially the close ups.

[ONIKKINEN]

12 minutes ago, geeklee said:

Super shots Oskari, especially the close ups.

Thank you! Wasn't sure how to feel about the closeups so i am glad you liked them. I think i suffer a bit too much from the pixel peeper syndrome.

[geeklee]

14 minutes ago, ONIKKINEN said:

I think i suffer a bit too much from the pixel peeper syndrome.

Don't worry, me too (but almost exclusively in my own stuff! 😩😅)

[Roy Foreman]

Very nice - especially the close ups.

[WestCoastCannuck]

Lovely work.