my first planetary imaging session of the year with the venerable ASI290MM.
to be honest, i've been incredibly frustrated and put off this hobby i love this year, numerous G11 problems, filter wheels DOA, cameras DOA, new computer with bits that won't work with Windows 7, instability issues, camera hangs, NVMe solid state drive randomly being not recognised, the list goes on.
but when you get out there and it all just works, it is just absolutely all worth it.
23/4/17, and the seeing was "good". certainly not the best. but i feel now after all these problems i know every little detail of my gear and processing workflow, and when you know something well you can push it far beyond what people think is possible.
this is a single 20 second stack (~1000 frames) through the blue filter, Celestron EdgeHD 925. i have 15x the data still to stack together and derotate but this was too good not to share.
those more experienced imagers will know if the blue channel looks like this, what the red and green must look like and with all the other data stacked

, and indeed what i will achieve once i get excellent seeing (fingers crossed)
the darker poles on Io are obvious too
enjoy guys. happy to be back out with the scope under the nighttime ecliptic in 2017