Click on the image for a full resolution version See this image also on Instagram   PK 164+31.1 is a very faint planetary nebula located at a distance of 1600 light years in the constellation Lynx. The curious shape and definite inner fine structure have been studied and in 2000, Reimers et al. determined that … Continue reading Jones Emberson 1. PK164+31.1. ARO 121