~520 million ly across
Laniakea Supercluster
Diameter~520 million ly
Mass~10¹⁷ Suns
Galaxies~100,000
NameHawaiian: "immense heaven"
Defined in 2014 by mapping how galaxies flow, all draining toward the Great Attractor.
Our home supercluster. Shape and galaxies here are schematic.
Sources
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