Poor transparency and gradients from passing headlamps. NGC 4248 also in view.

Object ID M106 (NGC 4258)
Ursa Major
Details 2019-03-04
Telescope 250mm f4.8 Newtonian
IDAS P1 filter
Camera Atik 460EX, Baader RGB
Exposure(s) 10 x 120s each filter
darks
Capture APT
Processing Nebulosity, Photoshop