Somewhat improved conditions on Tuesday night led to some pretty good seeing, though I have not yet seen anything as good for Jupiter as I had last Australian autumn. Saturn is still wallowing in the mire at 1 am and this session did not produce anything spectacular.
I continue to refine the CH4 images. I follow the protocol on Christophe Pellier's site, taking a long video (10 mins) with 2X binning and derotating it in WJ (having first extracted and sharpened a reference image based on 1000 frames from the video using PIPP, AS, and Registax). The protocol is modified from when Christophe wrote it some years ago - he says there is no need to create a dark frame, and I must say there is no obvious effect if you do use one. Compared with my early efforst in CH4, there is some quite nice detail here. It is a difficult medium as you are collecting photons from just a few nm of bandwidth around 890 nm.
Note that there are two cameras used here- the 290MM for the IR and CH4 images, and the 224MC for the colour images.
I am about to have another go this evening, and will spend longer collimating and cooling. I am now using a Lymax cooler.
Thanks for looking