Residing the constellation Pegasus are two unique galaxy groups. In the upper right of this image is the "Deer Lick Group" which consists of NGC 7331 (the large galaxy) and four smaller
galaxies. Their close alignment to NGC 7331 is simply by chance.
In the lower left of this image you will see "Stephan's Quintet". It consists of five galaxies, four of which form the first compact galaxy group ever discovered. These four galaxies
form a physical association and eventually, astronomers believe, may merge into a single galaxy.