NGC 2207 and IC 2163 are a pair of colliding spiral galaxies about 80 million light-years away in the constellation Canis Major.  The larger spiral, NGC 2207, is classified as an intermediate spiral galaxy exhibiting a weak inner ring structure around the central bar.  The smaller companion spiral, IC 2163, is classified as a barred spiral galaxy that also exhibits a weak inner ring and an elongated spiral arm that is likely being stretched by tidal forces with the larger companion.  In about a billion years time they are expected to merge and become an elliptical galaxy or perhaps a disk galaxy.

The data was collected in our summer's here with Orion and Canis Major rising but was cursed by daylight saving and heat.   
So, getting the camera stable at -15C and keeping focus as the temperature dropped from 36C to around 21C made me wish the 127is had a carbon fibre tube. 
This is quite a small object at 4.3 x 2.8 arcminutes and fairly faint 12. 2 magnitude.  It really needs more aperture and longer focal length than my 5 inch refractor, but then again, there's a lot to be said for not messing around with collimation when the seeing is good :-).

9 Jan 2024 Update

The processing workflow in Pixinsight with new tricks and tools is getting much improved results from the same data. In particular GHS with the latest BlurXTerminator AI 4 library and NoiseXterminator  pulling better detail with better color so that almost helps make up for last month of cloud and rain but it would be nice if it could just give me one night under the new moon to get the RedCat 71 and 127is out gathering some quality photons while Orion and Canis Major are well placed.  On the plus side, no bushfires and I am well above the flood plain but parts of Australia are getting smashed with repeated catastrophic rainfalls. In places over 500mm and that is liked someone dumped a swimming pool on your head. Tipping point? I remember 20 years ago when two or the three clear nights a weak was the norm but it seems nothing is normal anymore.