What is the Ring Nebula?

The Ring Nebula is the expanding outer layers of a dying star. The star, which would have been between one to eight times the mass of our Sun, ejected its outer layers into space during its late evolutionary phases. The Ring Nebula lies some 2,000 light years distant in the direction of the constellation Lyra.

The Hubble Space Telescope has produced a stunning image of the Ring Nebula, which may be viewed at:

Additional information can be found at the Hubble Heritage Project:

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