Since the Pisces-Cetus Supercluster includes the Milky Way Galaxy, the eight planets in the solar system, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, all reside within it. As of this writing, dwarf planets such as Pluto number five. There are also 169 moons orbiting the planets mentioned above and a number of asteroids and comets as well.
The Pisces-Cetus Supercluster Complex is made up of about 60 clusters and five parts which include the Pisces-Cetus Supercluster, the Pegasus-Pisces Chain, the Perseus-Pegasus Chain, the Sculptor Region and the Virgo-Hydra-Centaurus Supercluster.
In December of 1987, astronomer R. Brent Tully announced that he had discovered a mass of galaxies larger than anything previously suspected. This supercluster is one of the largest structures in the universe, second only to the 1.37-billion-light-year-long Sloan Great Wall.
Centered around the Milky Way, mapping of the Pisces-Centus Supercluster extends 1 billion light years in a cosmic sphere. Three other supercluster complexes - Aquarius, Hercules-Corona Borealis and Leo - complete the sphere in the upper right, upper left and lower left. Any information on galaxies outside this sphere is incomplete.