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  • Kerri Roth

    Explanation: This pretty planetary nebula, cataloged as NGC 6369, was discovered by 18th century astronomer William Herschel as he used a telescope to explore the medicinal constellation Ophiucus. Round and planet-shaped, the nebula is also relatively faint and has acquired the popular moniker of Little Ghost Nebula. Planetary nebulae in general are not at all related to planets, but instead are created at the end of a sun-like star’s life as its outer layers expand into space while the star’s core shrinks to become a white dwarf. The transformed white dwarf star, seen near the center, radiates strongly at ultraviolet wavelengths and powers the expanding nebula’s glow. Surprisingly complex details and structures of NGC 6369 are revealed in this tantalizing image composed from Hubble Space Telescope data. The nebula’s main ring structure is about a light-year across and the glow from ionized oxygen, hydrogen, and nitrogen atoms are colored blue, green, and red respectively. Over 2,000 light-years away, the Little Ghost Nebula offers a glimpse of the fate of our Sun, which could produce its own planetary nebula only about 5 billion years from now.

  • Denise Dzara

    NGC 6369; universe; sky; space; stars; solar system; cosmos

  • Tracey J. Evans

    The Little Ghost Nebula (NGC 6369) 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. Credit: NASA and The Hubble Heritage Team (STScI/AURA) (Wallpapers at link)

  • Tanmay Tegginmath

    #Astronomy: The Little #GhostNebula, #NGC6369 A planetary nebula formed at the end of a star's life. Our own sun could produce something like this in as little as 5 billion years from now.

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