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The large bright object in the center of this image is Sharpless 171; surrounding it (and extending far beyond the frame) is NGC 7822. This nebula, in the constellation Cepheus, is energized by the star cluster in the upper right, which is Berkeley 59. Note how all of the pillar-shaped structures point toward the star cluster. This is because the radiation and solar wind from the cluster is pushing the nebula away from it. As the nebula travels through space it occasionally gets "caught" on pockets of higher-density interstellar medium, resulting in the pillars seen here (and in many other nebulae).
This is a tricolor narrowband image with Ha:OIII:SII = 5:4:5 hours of exposure (14 hours total).