Emission Nebula NGC 6820 in Vulpecula
Emission Nebula NGC 6820 in Vulpecula and Open Cluster NGC 6823. 254 mm Newton with UHC Filter, 74X. September 16th, 2012. Observer: Dr. Johannes Schilling, Lonsee
Emission Nebula NGC 6820 in Vulpecula and Open Cluster NGC 6823. 254 mm Newton with UHC Filter, 74X. September 16th, 2012. Observer: Dr. Johannes Schilling, Lonsee