Galaxy supercluster that is home to the Milky Way Galaxy and many more galaxies
Laniakea Supercluster
A map of the Laniakea Supercluster and its component galaxy clusters
Observation data (Epoch J2000)
Constellation(s)
Triangulum Australe and Norma (Great Attractor)
Right ascension
10h 32m
Declination
−46° 00′
Number of galaxies
100,000–150,000
Parent structure
Pisces–Cetus Supercluster Complex
Major axis
520 million ly (159 Mpc) h−1 67.80 ± 0.77 (H0 from Planck 2013)
Redshift
0.0708 (center)
Distance
250 million ly (77 Mpc) h−1 67.80 ± 0.077 (Great Attractor) (H0 from Planck 2013)
Binding mass
1×1017[1]M☉
Other designations
Local Supercluster, Laniakea, Laniakea Supercluster, Laniakea Complex
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters
The Laniakea Supercluster (/ˌlɑːni.əˈkeɪ.ə/; Hawaiian for "open skies" or "immense heaven")[2] is the galaxy supercluster that is home to the Milky Way and approximately 100,000 other nearby galaxies.
It was defined in September 2014, when a group of astronomers including R. Brent Tully of the University of Hawaiʻi, Hélène Courtois of the University of Lyon, Yehuda Hoffman of the Hebrew University of Jerusalem, and Daniel Pomarède of CEA Université Paris-Saclay published a new way of defining superclusters according to the relative velocities of galaxies.[3][4] The new definition of the local supercluster subsumes the prior defined local supercluster, the Virgo Supercluster, as an appendage.[5][6][7][8][9]
Follow-up studies suggest that the Laniakea Supercluster is not gravitationally bound. It will disperse rather than continue to maintain itself as an overdensity relative to surrounding areas.[10]
^"The Milky Way's 'City' Just Got a New Name". Bloomberg.com. CityLab. 3 September 2014. Retrieved 9 September 2014.
^Taylor, Charles (2014). Science Encyclopedia. Kingfisher.
^Tully, R. Brent; Courtois, Hélène; Hoffman, Yehuda; Pomarède, Daniel (Sep 2014). "The Laniakea supercluster of galaxies". Nature. 513 (7516): 71–73. arXiv:1409.0880. Bibcode:2014Natur.513...71T. doi:10.1038/nature13674. ISSN 1476-4687. PMID 25186900. S2CID 205240232.
The LaniakeaSupercluster (/ˌlɑːni.əˈkeɪ.ə/; Hawaiian for "open skies" or "immense heaven") is the galaxy supercluster that is home to the Milky Way and...
the Virgo Supercluster is only a lobe of an even greater supercluster, Laniakea, a larger, competing referent of the term Local Supercluster centered on...
turn is part of the Virgo Supercluster, which is part of the LaniakeaSupercluster, which is part of the Pisces–Cetus Supercluster Complex. The large size...
horizons'. Laniakea or Laniākea may also refer to: LaniakeaSupercluster, a supercluster of galaxies that includes the Milky Way Laniākea, a building...
galaxies, which form part of the Virgo Supercluster, which is itself a component of the LaniakeaSupercluster. It is estimated to contain 100–400 billion...
intergalactic space and the apparent central gravitational point of the LaniakeaSupercluster of galaxies that includes the Milky Way galaxy, as well as about...
the proposal of a supercluster, Laniakea, that would encompass the Great Attractor, Virgo Supercluster, Hydra–Centaurus Superclusters. A wall was proposed...
the cosmos. This led to the identification of a local supercluster named the LaniakeaSupercluster Johann Bayer Andreas Cellarius Cosmographia Julius Schiller...
Bibcode:2020AAS...23545301P. "Astronomers map massive structure beyond LaniakeaSupercluster". University of Hawaii. 10 July 2020. Retrieved 10 July 2020. Overbye...
group itself is a part of the larger Virgo Supercluster, which may be a part of the LaniakeaSupercluster. The exact number of galaxies in the Local Group...
Both the Local Group and the Virgo Supercluster are contained in a much larger cosmic structure named Laniakea. The word galaxy was borrowed via French...
2014, it was announced that the Southern Supercluster Strand is a lobe in a greater supercluster, Laniakea, that is centered on the Great Attractor....
gravitationally bound structures in the universe after some superclusters (of which only one, the Shapley Supercluster, is known to be bound). They were believed to...
S2CID 124323774. Carlisle, Camille M. (3 September 2014). "Laniakea: Our Home Supercluster". Sky and Telescope. Tully, R. B. (1 April 1986). "Alignment...
structure: Universe Observable universe Pisces–Cetus Supercluster Complex LaniakeaSupercluster Virgo Supercluster Local Sheet Local Group Milky Way subgroup Milky...
Way → Milky Way subgroup → Local Group → Local Sheet → Virgo Supercluster → LaniakeaSupercluster → Local Hole → Observable universe → Universe Each arrow...
NGC 5979. The Great Attractor, the gravitational center of the LaniakeaSupercluster which includes the Milky Way galaxy, straddles between Triangulum...
contains the Milky Way, the Local Group, and the larger part of the LaniakeaSupercluster. The Milky Way is within a few hundred million light-years of the...
in the Local Group of galaxies, which in turn is in the LaniakeaSupercluster. This supercluster spans over 500 million light-years, while the Local Group...
Staff (10 July 2020). "Astronomers map massive structure beyond LaniakeaSupercluster". University of Hawaii. Retrieved 10 July 2020. Overbye, Dennis...
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