The processing data repository is all cleared out so this month you have my recent capture of M100 to play with! The stacked .fits file comprise 89 x 120 second light frames, 10 x dark frames, 30 x flat frames and 30 x dark flats. The ASI294MC gain was tweaked up from 125 unity to 180 for this one just to see how it would go. The photons were collected with my 9.25
Just click the link below to download the files and process using your preferred software and methods. Then post your results to this thread for us all to enjoy!
This is the original posting: viewtopic.php?f=66&t=17645
Please consider submitting some data of your own for future challenges. Just send a PM to a Mod or an email to: firstname.lastname@example.org
And as always, have fun with this one! I look forward to seeing how your processing turns out.