Astrophysics (Index)About

Laniakea Supercluster

(Laniakea, Local Supercluster)
(group of clusters including the Local Group)

The Laniakea Supercluster (considered the Local Supercluster) is a supercluster with 300-500 galaxy clusters, with 100,000 galaxies including the Milky Way, stretched out over 160 megaparsecs, with a mass of about 1017 solar masses. It was defined as such in September 2014 based upon a study of the velocities of the galaxies. It combines four groups traditionally labeled superclusters:

A study has suggested it is not gravitationally bound in which case whether the term "supercluster" applies is a matter of nomenclature.


(galaxy supercluster,local,large scale structure)
Further reading:
http://en.wikipedia.org/wiki/Laniakea_Supercluster
https://www.nature.com/news/earth-s-new-address-solar-system-milky-way-laniakea-1.15819
https://ui.adsabs.harvard.edu/abs/2015A%26A...575L..14C/abstract

Referenced by pages:
astronomical quantities
Coma Supercluster
Great Attractor
Hydra-Centaurus Supercluster
Sun
supercluster
Virgo Supercluster

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