Joel, that's impressive sharpness and small stars! Large aperture? What your imaging resolution?
Thanks! It's the QHY23 on a 12" Newton with an ASA reducer, which gives a pixel scale of about 0.628 arcsec/pixel, the M110 image was drizzle upsampled by 2x, so that gives roughly half (0.314 arcsec/pixel). The Newton is slightly out of collimation though, so we'll have to fix that. The stars were reduced a bit using MorphologicalTransform with a star mask to hide some of the miscollimation (in general I don't really like doing that, but in this case it worked out)
