https://www.cnet.com/news/hubble-captures-haunting-ghost-nebula-for-halloween/ > The Ghost Nebula is located in the "W"-shaped constellation Cassiopeia. It's easy to see how it earned its spooky nickname thanks to what NASA poetically calls its "flowing veils of gas and dust."  > "The nebula is being blasted by a torrent of radiation from a nearby, blue-giant star called Gamma Cassiopeiae, which can be easily seen with the unaided eye at the center of the distinctive 'W' asterism that forms the constellation," says NASA.