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Helix Nebula: Ultraviolet, Visible and Infrared Views
Stars like our Sun end their lives by casting off their outer layers, briefly forming a spectacular "planetary nebula" like the Helix Nebula. In visible light, we see the glow of hot gases illuminated by a hot, compact core, known as a "white dwarf." Shifting into the near-infrared reveals the glow of more complex molecules formed in the outer shell. The mid-infrared glow highlights the warm (bright red) dust surrounding the white dwarf.
Optical: Hot gas ejected from a dying star glows.
Near-Infrared: Near-infrared light reveals cooler material.
Mid-far-Infrared: Warm dust is identified in mid-infrared light.
Infrared-Ultraviolet: The ultraviolet light traces the hot gas being expelled from the dying star.
- Release DateNovember 12, 2018
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov