Image scale and stellar profiles
As you know I've acquired a FSQ106N last year and I've been imaging with it quite a lot lately. One thing I have noticed is that I tend to burn star cores a lot more since I've used that scope.
Check the attachment below zoomed at 300%. That's a 5min sub (debayered to LUM) in the area of the veil nebula. The veil itself is quite faint. I did a bit of 10min subs but mostly 5min which is not long by any standard. Even though the "brightish" stars are burnt.
At first I thought something had changed in my processing flow but when I checked the raw files the stars are already saturated.
Is this a side effect of under sampling? Or should I go for shorter subs? Or do I need a camera with smaller pixels? This is a QHY8 btw.
|