Noooo, it's a conspiracy, the stars are fat-bottomed
Maybe I've been stuck in the house too long
Thanks for your feedback, everyone
I should probably add that the image was taken with an ASI183MM, so 2.4 micron pixels...I knew I was pushing it, especially given the woolly seeing we've been having lately, was just thankful for the clear nights around New Moon.
Naturally, I pulled it all apart yesterday on the search for a problem. I did actually find one...pretty much on day one with the scope, I replaced the focuser tube to 2" nozzle, as it had a screw to secure the coma corrector in the barrel which I wasn't having any of. The replacement - a Baader M54x1 click-lock 2"...shifts whatever is in the focuser depending on the position of unlock. So far, I haven't found it to be reproducible, at least not to any level of what I'd call accuracy. Having spent hours box diving yesterday, I can't find the (unjustly maligned?) original