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prism or mirror, and reflects the rays back to us.
More recent research, however, has confirmed that it indeed is likely a ring, or torus of bright material surrounding its central star.
In the night sky, the Ring Nebula shines at magnitude 8.8, and thus is far too faint to be seen with the unaided eye. On this scale used by astronomers to indicate brightness, larger numbers mean fainter objects, and the limit for naked-eye viewing is around 6.
You might ask if the centred
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