In 1877, when French astronomer Edouard Jean Marie Stephan (1837-1923) discovered his Quintet in the constellation Pegasus, he thought he had found an unusually compact group of the then-mysterious nebulae. They are now known to be galaxies, and this image shows three of the quintet. Redshift measurements have shown that one of the five galaxies is much closer to Earth than the others, which are about 250 million light years away, and merely lies in the same line of sight. The remaining four are probably physically associated and thus should perhaps be renamed Stephan's Quartet.