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About This Image
A dying star expels its outer layers, creating a planetary nebula . so called because it resembles a planet when seen with a small telescope. NGC 6369's blue-green ring marks the location where energetic ultraviolet light has stripped electrons from oxygen atoms in the gas.Learn more on the Hubble Heritage website Get supporting picture information including original images, caption and facts, and astronomer biographies. Learn more in NewsCenter HubbleSite's NewsCenter is the place to find the story behind this image, along with its original news release and all related images.