Caldwell 63, or NGC 7293, is a planetary nebula located 650 million light years away from Earth in the Aquarius constellation with an apparent magnitude of 7.3. It is commonly known as the Helix nebula and was discovered in 1823 by Karl Ludwig Harding, a large nebula with even its brighter ring stretching across 3 light years.
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0 images of Helix Nebula are available in LCO Archive.
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| Observer | Roly Warry |
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