This happens with airplanes too. You just have to reject the parts of the frames from the stack that have the nearby object in the view. Sure if we were using f

This happens with airplanes too. You just have to reject the parts of the frames from the stack that have the nearby object in the view. Sure if we were using film this would be a problem, but with good software you can do some amazing deep sky imaging using nothing but a 12 inch telescope and a DSLR. Also, maybe he just doesn't know about PixInsight... https://pixinsight.com/ https://pixinsight.com/