Exposures: 3 hrs 10 min of Ha; 50 min each OIII and SII for a total of 4 hrs 50 min
Color mapped by assigning Ha to Red; OIII to blue and SII to green
FOV = 17.4 x 15.4 arc minutes
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.
Located 11,000 light years away
The bubble itself is 10 light years across.
Cropped and reduced 60% from original
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