I don't have a great deal of data on this subject and plan to capture more but I'm on a short holiday and had nothing better to do this morning other than throw this together.
My gear:
Explore Scientific ED152 CF APO w/TSOptics 1.0x flattener (f8) 1220mm FL, ZWO2600mmPro Temp 10°, Gain 100, Offset 15, Chroma 3nm Ha, OIII, RGB filters, Astro-Physics Mach One mount
Captured with NINA, Processed with PixInsight
For the RGB image I have a very limited amount of data. I wasn't even expecting to process this but was pleasantly surprised how well the nebula came through with so little time.
Red 12x90sec
Green 13x90sec
Blue 10x90sec
For a total of only 52 minutes and 30seconds of RGB from my Bortle 8-9 backyard observatory.
For the HOO version I have a bit more time on it but still not where I would like to be.
Ha 38x600sec = 6hrs20mins
OIII 21x600sec = 3hrs30mins
For a total of 9 hours 50 minutes of narrowband.
I removed the stars from the narrowband image and then blended the HOO data with the RGB image with stars to create this final image.
BTW, yes, the camera temp is set to 10°, NOT -10°. With our daytime temps reaching 110°f+ (43.3°c) there is no way for me to get down to even 0°. The great thing about these newer cameras is there is so little difference in noise between -10 and +10 that it's no big deal.
