[starfinder (Russ)]

Thanks guys for your extremely helpful advice. Exposures were 20mins and were taken before I'd done PEC on the mount. You're right- exposures were too long under the prevailing sub-optimal conditions, but it's good to push the boundaries to see how far we can go. I'm intrigued about elongated star repair. I will give it a try, but nothing beats good data! Thanks again and clear skies. Russ