Great Attractor region

E511407

astronomical structure gravitational anomaly mass concentration

The Great Attractor region is a massive gravitational anomaly in intergalactic space that strongly influences the motion of nearby galaxy clusters, including those in the Hydra–Centaurus Supercluster.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (5)

Label	Occurrences
Great Attractor	6
Great Attractor region canonical	4
Centaurus–Hydra–Norma large-scale region	1
Great Attractor mass concentration	1
Norma–Great Attractor subregion	1

How this entity was disambiguated

This entity first appeared as the object of triple T5336626 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Great Attractor region
Context triple: [Hydra–Centaurus Supercluster, isDynamicallyConnectedTo, Great Attractor region]

A. Shapley Supercluster
The Shapley Supercluster is one of the most massive known concentrations of galaxies in the nearby universe, exerting a significant gravitational influence on surrounding cosmic structures.
B. Hydra–Centaurus Supercluster
The Hydra–Centaurus Supercluster is a massive nearby concentration of galaxy clusters that forms one of the dominant structures in our cosmic neighborhood and serves as a major component of the larger Laniakea Supercluster.
C. Laniakea Supercluster
Laniakea Supercluster is a vast cosmic structure encompassing the Milky Way and hundreds of thousands of other galaxies, forming one of the largest known galaxy superclusters in the observable universe.
D. Virgo Supercluster
The Virgo Supercluster is a massive galaxy supercluster that contains the Local Group, including the Milky Way, and forms part of the larger Laniakea Supercluster.
E. Perseus–Pisces Supercluster
The Perseus–Pisces Supercluster is a massive, elongated concentration of galaxy clusters stretching hundreds of millions of light-years across space and forming one of the most prominent large-scale structures in the nearby universe.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Great Attractor region
Target entity description: The Great Attractor region is a massive gravitational anomaly in intergalactic space that strongly influences the motion of nearby galaxy clusters, including those in the Hydra–Centaurus Supercluster.

A. Shapley Supercluster
The Shapley Supercluster is one of the most massive known concentrations of galaxies in the nearby universe, exerting a significant gravitational influence on surrounding cosmic structures.
B. Hydra–Centaurus Supercluster
The Hydra–Centaurus Supercluster is a massive nearby concentration of galaxy clusters that forms one of the dominant structures in our cosmic neighborhood and serves as a major component of the larger Laniakea Supercluster.
C. Laniakea Supercluster
Laniakea Supercluster is a vast cosmic structure encompassing the Milky Way and hundreds of thousands of other galaxies, forming one of the largest known galaxy superclusters in the observable universe.
D. Virgo Supercluster
The Virgo Supercluster is a massive galaxy supercluster that contains the Local Group, including the Milky Way, and forms part of the larger Laniakea Supercluster.
E. Perseus–Pisces Supercluster
The Perseus–Pisces Supercluster is a massive, elongated concentration of galaxy clusters stretching hundreds of millions of light-years across space and forming one of the most prominent large-scale structures in the nearby universe.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	astronomical structure ⓘ gravitational anomaly ⓘ mass concentration ⓘ
alternativeName	Great Attractor ⓘ linked to: Great Attractor region
associatedWith	Centaurus Cluster ⓘ Hydra Cluster ⓘ Norma Cluster (Abell 3627) ⓘ linked to: Norma Cluster
contains	large-scale filamentary structures ⓘ rich galaxy clusters ⓘ
coordinateSystem	near Galactic latitude ~ 0° ⓘ near Galactic longitude ~ 320° ⓘ
cosmologicalRole	major component of local large-scale structure ⓘ
discoveredBy	Lynden-Bell et al. ⓘ linked to: Donald Lynden-Bell
discoveryMethod	galaxy peculiar velocity measurements ⓘ
distanceFromEarth	approximately 150 to 250 million light-years ⓘ
epochOfDiscovery	1980s ⓘ
gravitationallyAttracts	Hydra–Centaurus Supercluster ⓘ Local Group ⓘ Virgo Cluster ⓘ
hasEffect	bulk flow of local universe galaxies ⓘ peculiar velocities of galaxies ⓘ
hasProperty	identified through galaxy velocity field anomalies ⓘ not directly visible in optical light ⓘ
hasUncertainNature	exact mass distribution not well constrained ⓘ
influences	cosmic flow models ⓘ measurements of the Hubble constant locally ⓘ
influencesMotionOf	Hydra–Centaurus Supercluster ⓘ Local Group of galaxies ⓘ linked to: Local Group galaxies Virgo Supercluster ⓘ nearby galaxy clusters ⓘ
isSubjectOf	large-scale structure mapping surveys ⓘ observational cosmology research ⓘ
locatedIn	direction of the constellations Centaurus and Norma ⓘ intergalactic space ⓘ
massEstimate	on the order of 10^16 solar masses ⓘ
obscuredBy	Milky Way disk ⓘ linked to: Galactic disk
observationalChallenge	lies behind the Milky Way’s Zone of Avoidance ⓘ
partOf	Laniakea Supercluster ⓘ
redshift	z ≈ 0.016 ⓘ
relatedPhenomenon	Laniakea Supercluster gravitational basin ⓘ linked to: Laniakea Supercluster
relatedTo	Shapley Supercluster ⓘ
scale	tens of megaparsecs ⓘ
studiedIn	X-ray wavelengths ⓘ infrared wavelengths ⓘ radio wavelengths ⓘ

How these facts were elicited

Referenced by (13)

Full triples — surface form annotated when it differs from this entity's canonical label.

Hydra–Centaurus Supercluster → isDynamicallyConnectedTo → Great Attractor region ⓘ

Norma Cluster → locatedInRegionOfSky → Great Attractor region ⓘ

Shapley Supercluster → relatedTo → Great Attractor ⓘ