I love finding these sorts of things hidden away in the archive. This is a variable star named V1331 Cyg nestled within some clouds. It looks like a gate to some fantasy world. The blank quadrant in the upper right is actually the tip of a dust cloud present in the foreground. See <a href="http://www.caelumobservatory.com/gallery/v1331cyg.shtml" rel="nofollow">some context here</a>. V1331 Cyg is at the top center edge in Adam Block's image.

The clouds are actually rather monochrome, I think. Some slight variations in color you see are due to some banding anomalies which are rather difficult to deal with. I greatly reduced some very large diffraction spikes and charge bleeds to a point where they are hardly visible. This makes it easier to see the cloud formations which are very near the star. There were also some very short exposures I used to make the central star really tiny.

Data came from two proposals: 11976 & 08216 Red: WFPC2 WF F814W (11976) Green: WFPC2 WF F606W (11976 & 08216) Blue: WFPC2 WF F450W (11976)