Another deep-sky image from the NFO archives, and another original Hyperstar/H9C composition. This time the Cave nebula in Cepheus. I recall the tracking was so good on this one that I actually got some vertical banding where the tracking error was well within 1-pixel for the whole imaging session. Not sure why it was quite so good that time, something to do with where I was imaging in the sky as well as several other things all working together with me for a change, but I never managed to repeat the precision tracking with this system afterwards 🙁
