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Stars and stellar evolution
The Ring Nebula
Zoomable Image

This close-up, visible-light view by NASA's Hubble Space Telescope reveals new details of the Ring Nebula.

The object is tilted toward Earth so that astronomers see the ring face-on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers thought. The blue gas in the nebula's center is actually a football-shaped structure that pierces the red doughnut-shaped material. Hubble also uncovers the detailed structure of the dark, irregular knots of dense gas embedded along the inner rim of the ring. The knots look like spokes in a bicycle. The Hubble images have allowed the research team to match up the knots with the spikes of light around the bright, main ring, which are a shadow effect.

The Ring Nebula is a well-known planetary nebula, the glowing remains of a Sun-like star. The tiny white dot in the center of the nebula is the star's hot core, called a white dwarf.

The nebula is about 2,000 light-years away in the constellation Lyra. The structure measures roughly one light-year across.

The Hubble observations were taken Sept. 19, 2011, by the Wide Field Camera 3. In the image, the deep blue color in the center represents helium; the cyan color of the inner ring is the glow of hydrogen and oxygen; and the reddish color of the outer ring is from nitrogen and sulfur.



NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration

Mouse over the image and scroll to zoom in and out, or use the blue buttons that appear in the lower right corner of the image.

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The Ring Nebula Takes Shape


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Exploring the Structure of the Ring Nebula


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