Planetary Nebulae Ring Nebula Lagoon Nebula Horsehead Nebula Helix Nebula Emission Nebulae Serpens Nebula Star Formation H II Regions Reflection Nebula Dumbbell Nebula Eagle Nebula Butterfly Nebula Supernova Remnants Crab Nebula Rosette Nebula Gum 39 Gum 40 N79 Nebula Bipolar Nebulae Stellar Evolution NGC 6164/6165 Cometary Globules Bok Globules Gum Nebula Gas Clouds NGC 1514 Types of Nebulae Carina Nebula Tarantula Nebula Trifid Nebula Triffid Nebula Lobster Nebula Cat's Paw Nebula Stellar Nurseries Katzenpfotennebel Cone Nebula Cosmic Dust Protoplanetary Nebulae Structure Pre-planetary Nebulae Pre-Planetary Nebulae Exposed Cranium Nebula RCW 7 Pillars of Creation Erupting Nebulae Star-Forming Regions NGC1333 Dolphin Head Nebula California Nebula Cederblad 211 Pa 30 Nebula Flame Nebula Gas and Dust Reflection Nebulae Herbig-Haro Objects Dark Nebulae Running Chicken Nebula
Infrared imaging traces sequential ejecta from the central star, pointing to a hydrogen-rich shell plus a complex inner cloud shaped by outflows.
