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A Bubble in Cygnus

Amateur astronomer Dave Jurasevich identified this bubble as a nebula in the complex Cygnus region on July 6, 2008. Only eleven days later the same object was independently identified by professional astronomer Mel Helm. Their final composite image is seen here, including narrow-band image data that highlights the nebula's delicate outlines.  Like the Bubble Nebula, this cosmic bubble could be blown by winds from a massive Wolf-Rayet star, or it could be a spherically-shaped planetary nebula, a final phase in the life of a sun-like star.