The Helix Nebula, NGC7293
About this image
The Helix Nebula, NGC7293, in the constellation Aquarius, as seen by the Kitt Peak 4-meter Mayall telescope in 1973. NGC7293 is about a light-year across and, at a distance of about 500 light-years, it is the closest known planetary nebula. North is at the top.
Minimum credit line: NOAO/AURA/NSF
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