Amazing what you find lying around on hard drives. Taken around June last year and totally forgotten as I didn't get the colour data and went to AAIC. Processed in Pixinsight with basic histogram stretch and Dark structure enhance contains 49 subs of either 20 and 30 minutes duration. Maybe a colour project for later this year.
GSO RC8 and ST8300 with SX-AO for guiding
Hires NGC6559