Hard to get a magnitude with so many star in and around but still in outburst. Removed as many using ASTAP and got V mag. of 12.0.

Object ID29P/Schwassmann-Wachmann
Details2022-12-20 23:00 UT
V 12.0
Telescope250mm f4.8 Newtonian, MPCC
CameraAtik 460EX @-10°C
FiltersBaader V
Exposure(s)10x180s
CaptureNINA
ProcessingAPP, Photoshop