This is an LRGB image of NGC 6503, the Lost in Space Galaxy. I have also included images of the synthetic L, inverted and annotated for reference.

The Lost in Space Galaxy has this nickname because it appears to be lonely in the darkness of intergalactic space. However, if you look closely around it you should see tiny background galaxies, and in that sense I don't see how this looks any more isolated than others. NGC 6503 is classified as a dwarf spiral galaxy. It is indeed located at the edge of a region called the Local Void, which is adjacent to our own Local Group and has sparse number of galaxies compared to cosmological averages. It is about 30,000 ly across, distance approximately 17 Mly. It is located in Draco on a line between the chi (44) and zeta (22) Draco stars. It has an apparent magnitude of 10.2. It's apparent size by my measurement is about 7 - 8 arcmin including the extended nebulosity visible in my image, and less than 2 arcmin across in the middle. This small size made it a challenge to image.

My coloring is actually not too far off when compared with Hubble images. I was unable to capture well red regions of HII and Halpha thoughout the galaxy, particularly around the edges. However, I did catch a hint of the blue in the outer arms representing younger stars as well as the brown color of the core and middle.

Overall I'm pleased with these results having been spending more time practicing various processing steps. This one could use more data, of course. There is still more noise to reduce, particularly if you zoom in and observe the graininess of the color. Still, things are coming together better for me. This galaxy probably represents the lower size limit that I can image to some degree of effectiveness and make out detail. Smaller than this and I simply can't resolve structure.

One processing note of interest is that I felt compelled to do an HDRMultiscaleTransform several times. I applied it twice to the synthetic L channel, once to the RGB combined channels, and then after LRGB combination, I applied it again. In all cases I preserved the background, and for RGB and LRGB I preserved the hue. This did a better job of showing smaller details in the galaxy. I thought about applying a CurvesTransformation once again to pop out the colors better, but decided this was enough for now. If I get the chance to gather more data I'll revisit all these steps.