Here is one I took at my dark site with my AstroPhysics Riccardi Honders 305mm F3.8 astrograph ( a mouthful!).
Camera QHY600m, AP1600 mount and ZWO autoguiding camera. Astrodon filters and FLI filter wheel.
Only 3 hours 45 but conditions were ideal like my dark site often turns on.
https://pbase.com/image/175195866/large
https://pbase.com/gregbradley/image/175195866
Greg.