Thank you for all the comments and feedback
.
A quick question on how to take Ha with OSC Qhy8. I suspect I am doing something wrong. Here are my steps
1. Image taken with Nebulosity in RAW
2. Dark, bias, flat corrected.
3. Color convert all
4. Do the stacking
5. split R,B,G from stacked image and only use R.
I am not sure if i am doing something wrong in step 5. Should I rather keep the Synthetic Lum instead of discarding Green and blue?