A supercluster.
A so-called "great wall", which is a block of galaxies more than a billion light-years long.
galaxies are in every direction in space there in clusters and super clusters
galaxies
yes
Stars, star clusters, distant galaxies, galaxy clusters, nebulae, ...
The galaxy clusters are the solar systems orbiting the galaxies.
A collection of from two to several hundred galaxies which are much more densely distributed than the average density of galaxies in space.
galaxies
They are simply called "galaxies which are part of a cluster".
Galaxy clusters typically have anywhere from 50 to 1,000 galaxies.
Most galaxies, even our own, are found in groups or clusters. For example, the Local Group contains several galaxies including the Milky Way, Andromeda, and the Magellanic clouds.
near giant elliptical galaxies.