I reshot two hours of the Rosette Nebula last night before the clouds rolled in. Unfortunately, I started the exposures and did not look at them until today and it looks like there was a tracking issue. Oh well, it'll come up again
FSQ-106, ST-10 and Astrodon 6nm Ha filter.
Cal
FSQ-106, ST-10 and Astrodon 6nm Ha filter.
Cal
Attached Image: