11/30/2019 NGC 7331 comparison with 2009 version
It turns out that I had captured NGC 7331 once before in 2009. At that time I was using a Celestron C11 with a modified Digital SLR camera.
I thought it would be interesting to compare the details of the two images to look for changes over time. Here is the result of that comparison:
What do you think? Do you see any stellar changes between the 2009 version and the 2019 version?