This spiral galaxy in Andromeda has apparent dimension of 13.5’ x 2.5’ and it is characteristic for dust lane.
It has a distance of 32 million light years and a diameter of 126000 light years, so it is larger than Milky Way and in addition has a higher activity in terms of star formation rate and radio luminosity. This could be due to tidal perturbations with another galaxy, which led also to a warp of the disc plane of the galaxy.
Indeed, following the dust lane in the image, you can see that on one side the dust lane is bent downward while on the other side is bent upward.
Optic GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8
Mount 10Micron GM2000 HPSII
Camera Moravian G3-16200 with external filter wheel 7 positions
Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted LRGB
Guiding system OAG Moravian M68 with guide camera Moravian G1-0301
Exposure details L 27x600" bin2 -20C
R 18x300" bin2 -20C
G 18x300" bin2 -20C
B 17x300" bin2 -20C
Total integration 8.9h
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5
Location Promiod (Aosta Valley, Italy), own remote observatory
Date 4/29/30 September 2019