Hercules Cluster (Abell 2151)
E922779
Hercules Cluster (Abell 2151) is a nearby, irregularly shaped galaxy cluster rich in spiral galaxies and active interactions, located in the constellation Hercules.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Hercules Cluster | 0 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Abell galaxy cluster
ⓘ
galaxy cluster ⓘ rich galaxy cluster ⓘ |
| cataloguedIn | Abell catalogue of rich clusters of galaxies NERFINISHED ⓘ |
| contains | numerous galaxy pairs and groups in interaction ⓘ |
| discoveredBy | George O. Abell NERFINISHED ⓘ |
| discoveryMethod | inspection of Palomar Observatory Sky Survey plates ⓘ |
| distanceFromEarth |
about 150 megaparsecs
ⓘ
about 500 million light-years ⓘ |
| hasAbellDistanceClass | distance class 4 ⓘ |
| hasAbellRichnessClass | richness class 2 ⓘ |
| hasAlternativeName |
A2151
NERFINISHED
ⓘ
Abell 2151 NERFINISHED ⓘ |
| hasClusterType |
irregular, non–cool-core cluster
ⓘ
spiral-rich cluster ⓘ |
| hasDeclination | +17° ⓘ |
| hasEnvironment | low-density large-scale surroundings compared to very rich clusters ⓘ |
| hasGalaxyPopulation |
high fraction of late-type galaxies
ⓘ
relatively low fraction of S0 galaxies ⓘ relatively low fraction of elliptical galaxies ⓘ |
| hasIntraclusterMedium | hot diffuse gas ⓘ |
| hasMemberType |
elliptical galaxies
ⓘ
irregular galaxies ⓘ lenticular galaxies ⓘ spiral galaxies ⓘ |
| hasMorphology | irregular ⓘ |
| hasNotableFeature |
evidence of cluster assembly in progress
ⓘ
high rate of star formation in many member galaxies ⓘ numerous blue spiral galaxies ⓘ |
| hasProperty |
clumpy substructure
ⓘ
dynamically young ⓘ not fully virialized ⓘ |
| hasRightAscension | approximately 16h 05m ⓘ |
| hasSubstructure | multiple galaxy clumps ⓘ |
| hasXRayEmission | weak compared to rich relaxed clusters ⓘ |
| inGalacticHemisphere | northern sky ⓘ |
| locatedInConstellation | Hercules NERFINISHED ⓘ |
| memberOf | Hercules Supercluster NERFINISHED ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ |
| partOf | local universe ⓘ |
| redshift | 0.036 ⓘ |
| richIn |
interacting galaxies
ⓘ
spiral galaxies ⓘ |
| shows |
ongoing galaxy mergers
ⓘ
strong galaxy–galaxy tidal interactions ⓘ |
| usedAs |
example of dynamically young cluster environment
ⓘ
laboratory for studying galaxy evolution in clusters ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.