Sorry for not responding earlier. I remember reading the messages but had waited to reply for some reason...
>Is there a particular website I could refer to that describes the workflow (including software packages) for this type of imaging would be helpful.
Not that I'm aware of actually. I have been doing this type of imaging since 2007 or so, because my mount (and camera) simply couldn't do longer exposures, but I basically figured it out on my own. I'm a planetary imaging guy, so the software that I'm using for recording is FireCapture.
I use AutoStakkert!2 for processing, but this can be really tricky at times as it can be a bit of a black-box and difficult to figure out where and why things go wrong. If it doesn't go wrong though, it is pretty fast and can have good results too. It helps that I can make some changes to the software while processing new recordings. I'm currently testing out an algorithm that removes the horizontal banding noise in the ASI174MM camera that is very faint but does always show up when pushing the data to the limit. This allowed me to go back to some earlier recordings and really push the data hard.
Attached a latest reprocessing of M51 using AutoStakkert!2 and Photoshop for post processing. Same data (actually I added a few frames more, 75% of what I collected that evening, so about 37 minutes integration time now).
I might write a small tutorial on how to make and process recordings like this, but currently I prefer to my spare time into actually making and processing recordings, and working on AS!2.
>I have a 20" Obsession with Servocat, and you have me wondering if I could pull this off for galaxy imaging... I just don't know about how long I can go before tracking or field rotation would be an issue.
A 20" could be very nice for this. Just try things out. There is no fully automatic field-rotation compensation in AS!2, but there is some functionality that you might use (although I would wait for a newer version of AS!2 to come out soon that will be better for this work. Other stacking software might also work, but typically the frames are difficult to deal with).
(better version here: http://www.astrokraa...1_reprocess.jpg )
Edited by MvZ, 04 September 2015 - 05:33 PM.