Teleskop service 12″ Richey-Chretien telescope, Skywatcher EQ8 mount,Atik 383L+ camera, Astronomik LRGB filters,
Hutech IDAS light pollution filter.
Haven’t imaged a global cluster for over a year so long overdue a go.
Bright one that I can even see in my finders scope.
Used a series of photoshop layer masks bring out the detail.
Data collected on two nights. 20th & 25th March 2017.
LRGB image with 5 hours 10 minutes of data. 16 x Lum 5 x Red 5 x Green 5 x Blue 10 minute exposures.