The Perseus–Pisces Supercluster (SCl 40) is one of the
largest known structures in the
universe
The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe. ...
. Even at a distance of 250 million
light-years, this chain of
galaxy cluster
A galaxy cluster, or a cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity, with typical masses ranging from 1014 to 1015 solar masses. They are the second-lar ...
s 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
The Virgo Supercluster (Virgo SC) or the Local Supercluster (LSC or LS) is a mass concentration of galaxies containing the Virgo Cluster and Local Group, which itself contains the Milky Way and Andromeda galaxies, as well as others. At leas ...
) 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
The Perseus–Pegasus Filament is a galaxy filament containing the Perseus–Pisces Supercluster and stretching for roughly a billion light-years (or over 300/h Mpc). Currently, it is considered to be one of the largest known structures in the ...
which stretches for roughly a billion
light years.
['Astrophysical Journal', Part 1 (), vol. 299, Dec. 1, 1985, p. 5-14. "A possible 300 megaparsec filament of clusters of galaxies in Perseus-Pegasus" ''12/1985'' ]
Clusters
The main clusters of the Perseus–Pisces Supercluster are
Abell 262
Abell 262 is a galaxy cluster in the Abell catalogue. It is part of the Perseus–Pisces Supercluster, one of the largest known structures in the universe. Although its central galaxy, NGC 708, is a giant cD galaxy, most of its bright galaxies ...
,
Abell 347, and
Abell 426.
See also
*
Abell catalogue
The Abell catalog of rich clusters of galaxies is an all-sky catalog of 4,073 rich galaxy clusters of nominal redshift ''z'' ≤ 0.2. This catalog supplements a revision of George O. Abell's original "Northern Survey" of 1958, wh ...
*
Large-scale structure of the universe
*
List of Abell clusters
The Abell catalogue is a catalogue of approximately 4,000 galaxy clusters with at least 30 members, almost complete to a redshift of ''z'' = 0.2. It was originally compiled by the American astronomer George O. Abell in 1958 using plates from PO ...
*
Supercluster
References
External links
Atlas of the universe page on the Perseus-Pisces Supercluster
Pisces–Cetus Supercluster Complex
Galaxy superclusters
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