noctilove
Messier 13 hercules cluster with barn door tracker
Constellation: Hecules
Magnitude: 5.8

Nikon D7000Nikkor 180mm f2.8 at f2.8. 6 minutes (12 x 30 seconds) at iso 1600. Using didymium filter. Stacked with Deep Sky Stacker and tracked with barn door tracker.