Exposures: 4 hrs of Ha, 45 minutes each of RGB for a total of 6.25 Hrs.
This planetary nebula was created from massive outflow of a Wolf-Rayet star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. The "bubble" is surrounded by a large region of diffuse hydrogen.
The bubble itself is 10 light years across.
Field of View = 52 x 35 arc minutes
Reduced 69% of original size
11,000 light years away
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