M52

Here is open cluster M52 taken with the setup described below. This is 45x15" at ISO 1600, processed in Nebulosity and finished in Canon's DPP. The image came out thinner than I expected: I hoped to be able to stretch it more. Some high-flying water vapor and the rising last-quarter moon surely should take some of the credit for the thin-ness. Otherwise, the image probably just needs a lot more exposure time. In favor of the image, however, it does remind me of what I saw through the scope. In the 100mm, M52 was just barely visible before the moon came out, meaning that I could see eight or so of the brightest stars and a foggy patch around them. Such is my light-polluted back yard. After the moon came out, the cluster's brightest star was the only one clearly visible, though if I was looking with averted vision at exactly the right spot, I could see a very faint mist surrounding it.
The image also has very sharp star edges. They were sharpened in Nebulosity through a function that allows the user no control. The image is better this way than it was originally, and more stars are clearly visible now. Having done it, though, now I'd like to blur them back just a little bit, but I have no software to do it that I know of.