C3 NGC4236

Another tricky Caldwell object. 2 sessions this time but still difficult. Horrible light pollution gradients to deal with which are still visible in the background.

 

250mm f4.8 Newtonian, MPCC

QHY168C @-15°C, IDAS P2

25x300s, 20x180s, darks, flats, bias

NINA, APP, Photoshop, Topaz Denoise AI

Done