This impressive nebula is rarely seen in photos, but is a perfect example of a small-scale star-forming factory. The hot, massive star SAO 20575 is blowing a tremendous gust of subatomic particles; a super solar wind that's carving out that vast light-year-wide bubble in the surrounding gas.
The star is so hot it's exciting the gas around it, causing it to glow red... and if you look to the right you can see fingers of material pointing right at the star, testaments to the winds and scathing ultraviolet radiation eating away at the nebular material. Someday, that star will explode and tear the nebula to shreds. So catch this object while you can!