The coadded images are already colour balanced (using my calibration method). Feel free to take this data and sharpen your skills on them. In return, please be so kind and send me a copy of your result so that I can include it on the according webpage for the benefit of other readers. Jim Misti offers more coadded images for testing.
Publication in printed media is not permitted unless explicitly granted.
If you use this data for scientific purposes, then I would like to be included in the list of co-authors of any emerging publication. Reference should then be given to
|NGC 7331 (incl. raw data):
||NGC 474 (incl. raw data):