The Perseus–Pisces Supercluster (SCl 40) is one of the largest known structures in the universe. Even at a distance of 250 million light-years, this chain of galaxy clusters extends more than 40° across the northern winter sky. The Perseus-Pisces Supercluster is one of two dominant concentrations of galaxies (the other being the Local supercluster) in the nearby universe (within 300 million light years). This supercluster also borders a prominent void, the Taurus Void, and is part of the Perseus–Pegasus Filament which stretches for roughly a billion light years.
|Observation data (Epoch )|
|Right ascension||01h 50m|
|76.7 Mpc (250 Mly)|
- "Superclusters - Large Scale Structures". science.jrank.org. Retrieved 25 May 2017.
- "Astronomy & Cosmology - Large Scale Structure of the Universe". whillyard.com. Retrieved 25 May 2017.
- 'Astrophysical Journal', Part 1 (ISSN 0004-637X), vol. 299, Dec. 1, 1985, p. 5-14. "A possible 300 megaparsec filament of clusters of galaxies in Perseus-Pegasus" 12/1985 Bibcode:1985ApJ...299....5B