The Helix Nebulae or NGC 7293. Some 700 odd light years away and powered by a central star, NGC 7293 is a planetary nebulae that is about 2.5 ly across. J.R.R. Tolkien would be proud of its common names.
This is in RGB with 12 subs each of 300 sec, -20C, 2×2 bin.
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