파일:Ring Nebula.jpgDescriptionRing Nebula.jpg English: The planetary nebula Messier 57, also known as the Ring Nebula, in the constellation Lyra (NGC 6720, GC 4447). Français :
파일:Heart Nebula (2020-08-11).jpgDescriptionHeart Nebula (2020-08-11).jpg English: Heart and Fishhead nebulae also includes: Cr30/Mel16/IC1824/NGC1027, IC1831, LBN646-48,50,55-57, and