Ring Nebula

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Ring Nebula
NGC 6720

Ring Nebula

 (rĭng)
n.
A planetary nebula in the constellation Lyra.
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References in periodicals archive ?
THE RING NEBULA, Messier 57 in Lyra now rising up the eastern evening sky, is a familiar target for astronomers of every stripe.
Messier 57, the Ring Nebula, is small and intense, so it punches easily through heavy light pollution.