I spent many-many hours in the backyard w/ my QHY Imager and the telescope tracking on M31 (Andromeda)
I shot 5 and 10 minute subs w. my Baader Planetarium Luminance, Red, Green and Blue Filters from my backyard in Spanish Fort, Alabama.
I then took 5 minute exposures via remote observatory time using their HA, OIII and SII filters and I mapped them in 'Hubble Color Mapping' alongside my LRGB exposures.
The Yellow/ Orange tint that was brought in with the additional filters / exposures, surprised me a bit but I do like the look, it's a bit different than some of the other shots I've seen of our neighboring Galaxy.
Space is awesome.