Globular cluster

GPTKB entity

Statements (28)
Predicate Object
gptkbp:instanceOf Astronomical object
gptkbp:age Very old
Typically 10-13 billion years
gptkbp:contains gptkb:Population_II_stars
Hundreds of thousands of stars
gptkbp:coreDensity Very high
gptkbp:discoveredBy gptkb:William_Herschel
gptkbp:distanceFromEarth Several thousand to tens of thousands of light-years
gptkbp:example gptkb:Messier_13
gptkb:Omega_Centauri
gptkb:47_Tucanae
gptkbp:excludes Significant amounts of gas or dust
gptkbp:foundIn gptkb:Galactic_bulge
gptkb:Galactic_halo
https://www.w3.org/2000/01/rdf-schema#label Globular cluster
gptkbp:mayInclude Variable stars
Blue straggler stars
Millisecond pulsars
gptkbp:metallicity Low
gptkbp:notableFor High stellar density
Oldest objects in the universe
gptkbp:numberInMilkyWay About 150-180
gptkbp:orbitType Galactic center
gptkbp:shape Spherical
gptkbp:studiedBy Astronomers
gptkbp:type Star cluster
gptkbp:bfsParent gptkb:open_cluster
gptkbp:bfsLayer 5