Emission Nebula NGC 6820 in Vulpecula Posted on 2012-09-23 by Emission Nebula 6820 in Vulpecula – 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 Related posts: No related posts.