Located in the constellation Pegasus, NGC 7331 is about 50
million light years from earth. Though it seems to be the
dominant member of a nice collection of galaxies in this image,
the smaller galaxies are in fact about 10 times farther away. One
odd feature of NGC 7331 is that the central bulge of the galaxy
and the outer arms seem to be rotating in opposite directions.
Astronomers are still trying to explain what would cause this
unusual situation.

Image data:
Telescope: Hyperion 12.5"
Camera: SBIG STL-11000
Exposure: LRGB = 190:70:70:70 (400 minutes total; all 10-minute sub-frames)