A few years ago, this symmetric nebula was discovered among the constellation Cygnus. Dave Jurasevich identified it on July 6, 2008 when looking at his images of Cygnus, which included the Crescent Nebula. He notified the IAU. Only eleven days later, Mel Helm identified it as an unknown nebula too. The Soap Bubble Nebula is most likely a planetary nebula, the final phase in the life of a sun-like star. It's really neat to see a perfectly symmetrical nebula, as I have never seen one before.
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