GC 4244
E918815
GC 4244 is a globular star cluster in the constellation Hercules, better known as Messier 13 (the Great Hercules Cluster), one of the brightest and most prominent globular clusters in the northern sky.
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
deep-sky object
ⓘ
globular star cluster ⓘ |
| age_Gyr | ~11.5 ⓘ |
| alsoKnownAs |
Great Hercules Cluster
NERFINISHED
ⓘ
M13 NERFINISHED ⓘ Messier 13 NERFINISHED ⓘ |
| angularDiameter_arcmin | ~20 ⓘ |
| apparentMagnitudeV | 5.8 ⓘ |
| belongsTo | Local Group NERFINISHED ⓘ |
| bestSeenFrom | northern hemisphere ⓘ |
| bestViewingSeason | northern summer ⓘ |
| catalogCode |
GC 4244
ⓘ
M 13 ⓘ NGC 6205 NERFINISHED ⓘ |
| celestialHemisphere | northern ⓘ |
| coreCollapsed | no ⓘ |
| declination_J2000 | +36° 28′ ⓘ |
| discoveredBy | Edmond Halley NERFINISHED ⓘ |
| discoveryYear | 1714 ⓘ |
| distanceFromEarth_kpc | ~6.8 ⓘ |
| distanceFromEarth_ly | ~22000 ⓘ |
| galacticLatitude_deg | +40.9 ⓘ |
| galacticLongitude_deg | 59.0 ⓘ |
| hasBlueStragglerStars | yes ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| includedInCatalog |
General Catalogue (GC)
NERFINISHED
ⓘ
Messier catalogue NERFINISHED ⓘ New General Catalogue NERFINISHED ⓘ |
| isAmongBrightestNorthernGlobulars | yes ⓘ |
| isNonStellarObject | yes ⓘ |
| isProminentGlobularCluster | yes ⓘ |
| locatedIn |
Milky Way
ⓘ
Milky Way halo NERFINISHED ⓘ |
| locatedInConstellation | Hercules NERFINISHED ⓘ |
| mass_solarMasses | ~6×10^5 ⓘ |
| metallicity_Fe_H | about −1.5 ⓘ |
| numberOfStars | several hundred thousand ⓘ |
| observedWith | amateur telescopes ⓘ |
| rightAscension_J2000 | 16h 41m ⓘ |
| spectralTypeDominant | old, metal-poor stars ⓘ |
| visibleToNakedEye | yes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.