All the poor weather has given me a chance to look again at some of my older data to see if it’s presentation can be improved. As always, the answer is yes. There’s always something new to learn and I’m grateful to those individuals out there who are not only prepared to learn how to do this stuff, but also to share those techniques with others.
I’ve now removed the misaligned frames from my M31 image, there were also some 3 minute frames in the mix as well which have also been removed. I’ve probably pushed this data as far as I can take it and further improvements will require a few more hours worth of exposure to push the noise levels down.
Telescope: Zenithstar 70 with WO 0.8x focal reducer
Camera: QHY9C
Mount: Astrotrac
Exposures: 14x 5 minutes