Great Attractor region
E511407
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.
Observed surface forms (2)
| Surface form | Occurrences |
|---|---|
| Centaurus–Hydra–Norma large-scale region | 1 |
| Great Attractor | 1 |
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical structure
ⓘ
gravitational anomaly ⓘ mass concentration ⓘ |
| alternativeName | Great Attractor NERFINISHED ⓘ |
| associatedWith |
Centaurus Cluster
NERFINISHED
ⓘ
Hydra Cluster NERFINISHED ⓘ Norma Cluster (Abell 3627) NERFINISHED ⓘ |
| 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. NERFINISHED ⓘ |
| discoveryMethod | galaxy peculiar velocity measurements ⓘ |
| distanceFromEarth | approximately 150 to 250 million light-years ⓘ |
| epochOfDiscovery | 1980s ⓘ |
| gravitationallyAttracts |
Hydra–Centaurus Supercluster
NERFINISHED
ⓘ
Local Group NERFINISHED ⓘ Virgo Cluster NERFINISHED ⓘ |
| 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
NERFINISHED
ⓘ
Local Group of galaxies NERFINISHED ⓘ Virgo Supercluster NERFINISHED ⓘ 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 NERFINISHED ⓘ |
| observationalChallenge | lies behind the Milky Way’s Zone of Avoidance ⓘ |
| partOf | Laniakea Supercluster NERFINISHED ⓘ |
| redshift | z ≈ 0.016 ⓘ |
| relatedPhenomenon | Laniakea Supercluster gravitational basin NERFINISHED ⓘ |
| relatedTo | Shapley Supercluster NERFINISHED ⓘ |
| scale | tens of megaparsecs ⓘ |
| studiedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ radio wavelengths ⓘ |
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Great Attractor
this entity surface form:
Centaurus–Hydra–Norma large-scale region