Located in the constellation Pegasus, 270 million light-years from Earth, it was discovered by Edouard M. Stephan in 1877. As the name suggests, the quintet actually contains five galaxies and is the first compact group ever discovered.

Credits: NASA/ESA, J. English (U. of Manitoba), S. Hunsberger (PSU), Z. Levay ( STSI), S. Gallagher (PSU) and J. Charlton (PSU)