Lists of astronomical objects
This is a list of lists, grouped by type of astronomical object.
Image: Mimas Cassini
Image: 243 ida
Image: C2014 Q2
Image: Portrait of Jupiter from Cassini
A supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe. The Milky Way is part of the Local Group galaxy group, which in turn is part of the Virgo Supercluster, which is part of the Laniakea Supercluster, which is part of the Pisces–Cetus Supercluster Complex. The large size and low density of superclusters means that they, unlike clusters, expand with the Hubble expansion. The number of superclusters in the observable universe is estimated to be 10 million.
The Abell 901/902 supercluster is located a little over two billion light-years from Earth.