CTB1 is a very faint supernova remnant in Cassiopeia and is about the same size as the full moon.
Acquisition Details
SII = 79x10min
Hα = 111x5min+45x10min
OIII = 81x10min
Total = 43hrs 25min
2016
SV152 Refractor @ f/8
Moravian G3-16200
Atik EFW2 Filter Wheel Astrodon SII/Ha/OIII Mach1GTO CP4
Narrowband image in Hubble palette
SII (red)= 14x20min
Ha (green)= 14x20min
OIII (blue)= 16x30min
Total = 17hrs 20min
RGB for stars=8x10min each
