... f/50, that is.
Taken on 16 Apr 2014, 1428UT.
Equipment: LX200-ACF 10", 2x Barlow, 2.5x Powermate, Canon EOS 600d. Seeing was all over the place, and I didn't get many runs due to unexpected cloud that materialised, TARDIS-like, only 90 minutes into my session.
Used 10%-ish of 3000 frames in AS!2 and wavelets in Registax, with a minor touch-up in Gimp. No scaling involved - this is actual size - the image, not the planet!