NGC 6205
E267997
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 6205 canonical | 5 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
deep-sky object ⓘ globular star cluster ⓘ |
| addedToMessierCatalogueBy | Charles Messier ⓘ |
| age | about 11.7 billion years ⓘ |
| alsoKnownAs |
Great Hercules Cluster
ⓘ
M 13 ⓘ
surface form:
M13
Messier 13 ⓘ |
| angularDiameter | about 20 arcminutes ⓘ |
| apparentMagnitudeV | 5.8 ⓘ |
| bestSeenInMonth | June ⓘ |
| bestSeenInSeason | northern summer ⓘ |
| catalog | New General Catalogue ⓘ |
| clusterCoreConcentration | moderate ⓘ |
| constellation | Hercules ⓘ |
| declination | +36° 27′ 35.5″ ⓘ |
| discoveredBy |
Edmund Halley
ⓘ
surface form:
Edmond Halley
|
| discoveryDate | 1714 ⓘ |
| distanceFromEarth |
about 22,000 light-years
ⓘ
about 6.8 kiloparsecs ⓘ |
| epoch | J2000 ⓘ |
| galacticLatitude | +40.9° ⓘ |
| galacticLongitude | 59.0° ⓘ |
| hasNGCNumber | 6205 ⓘ |
| hasOtherDesignation |
C 1639+365
ⓘ
GC 4244 ⓘ |
| hostGalaxy | Milky Way ⓘ |
| isPopularTargetFor |
amateur astronomers
ⓘ
astrophotography ⓘ |
| locatedIn |
Galactic halo
ⓘ
Milky Way ⓘ |
| locatedNearOnSky | η Herculis ⓘ |
| mass | about 600,000 solar masses ⓘ |
| messierCatalogueEntryYear | 1764 ⓘ |
| messierNumber | 13 ⓘ |
| metallicityFeH | about −1.5 ⓘ |
| notableFeature |
contains numerous variable stars
ⓘ
contains several blue straggler stars ⓘ shows a dense, bright core ⓘ |
| numberOfStars | several hundred thousand ⓘ |
| observedFrom | Northern Hemisphere ⓘ |
| radius | about 84 light-years ⓘ |
| rightAscension | 16h 41m 41.24s ⓘ |
| shapleySawyerConcentrationClass | V ⓘ |
| skyPositionDescription | in the keystone asterism of Hercules ⓘ |
| surfaceBrightness | high ⓘ |
| type | classical globular cluster ⓘ |
| visibility |
barely visible to the naked eye under very dark skies
ⓘ
visible in small telescopes ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
M13