noun
supercluster of galaxies
Astronomical term for a large-scale structure composed of multiple galaxy clusters.
おとめ座超銀河集団は、私たちの銀河系を含む巨大な構造です。
The Virgo Supercluster is a vast structure that includes our Milky Way galaxy.
銀河団 is a galaxy cluster, a smaller grouping of galaxies; 超銀河集団 is a supercluster, a larger structure containing multiple galaxy clusters.
Compound of 超 (super-), 銀河 (galaxy), and 集団 (group, cluster). A straightforward calque of the English term 'supercluster of galaxies'.