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Globular cluster

A globular cluster is a spheroidal conglomeration of stars that is bound together by gravity, with a higher concentration of stars towards its center. It can contain anywhere from tens of thousands to many millions of member stars, all orbiting in a stable, compact formation. Globular clusters are similar in form to dwarf spheroidal galaxies, and though…

History, History of observations & Composition

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Average luminosity
~25 000 L☉
Density
~2 stars/cubic ly
Discovered
Abraham Ihle, 1665
Mass range
1K M☉ - >1M M☉
Size range
10-300 ly across
Type
Star cluster

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Overview

History of observations

Formation

Composition

Hertzsprung–Russell diagrams

Morphology

Tidal encounters

Planets

Books

Review articles

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Map overview Semantic statistics

Globular cluster

Nodes178
Edges177
Triples266
Avg. degree1.99
Density0.011236
Components1

How this topic connects Entity context

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Globular cluster

Top relations

related to Heavy element content · 23
Globular cluster → Astronomers, Both, ESO, Globular, II, In, Milky Way, Oo, Oosterhoff, Oo II, Pieter Oosterhoff, Population, Population II, Produced, RR Lyrae, SC06, Suggested, Sun, Terzan, The
related to history · 23
Globular cluster → Abbé Lacaille, Abraham Ihle, Catalogue, Cepheid, Charles Messier, Clusters, Edmond Halley, German, Harlow Shapley, He, Herschel, In, John Herschel, NGC, Omega Centauri, Ptolemy, RR Lyrae, Second Thousand New Nebulae, Shapley, Stars
related to Review articles · 23
Globular cluster → An, Annual Review, ARv, Astronomy, Astrophysics, Astrophysics Review, Bibcode, Bragaglia, Carretta, Dynamical, Elson, Gratton, Heggie, Hut, Inagaki, Internal, Meylan, Piet, Rebecca, S2CID
related to External links · 21
Globular cluster → AustraliaSCYON, CanadaA, Development, Exploration, Globular Clusters, Harris, Holger Baumgardt, ItalyCatalogue, Marco Castellani, McMaster University, Milky Way Globular Cluster, MODEST, Ontario, Parameters, Queensland, Rome Astronomical Observatory, Space Messier, Students, University, Way Globular ClustersCatalogue
related to Books · 19
Globular cluster → Binney, Cambridge University Press, Douglas, Dynamical Evolution, Galactic Dynamics, Globular Clusters, Heggie, Hut, ISBN, James, Lyman, Multidisciplinary Approach, Piet, Princeton University Press, Scott, Spitzer, Star Cluster Dynamics, The Gravitational Million-Body Problem, Tremaine
related to Formation · 17
Globular cluster → Antennae Galaxy, During, Globular, Hubble Space Telescope, In, It, Large Magellanic Cloud, LMC, Milky Way, Modern, Observations, SMBH, SMBHs, Some, The, Their, This
related to Exotic components · 14
Globular cluster → Andromeda Galaxy, Astronomers, Based, Both X-ray, Close, How, HST, Hubble Space Telescope, M15, Mayall II, Some, The, These, X-ray
related to Classification · 13
Globular cluster → Astronomers, Chile, Class, Class XII, Dark, Helen Sawyer Hogg, Henrietta Swope, In, Pontifical Catholic University, Sawyer, Sawyer Concentration Class, Shapley, Their
related to Planets · 13
Globular cluster → Astronomers, Because, Earth-mass, Globular, In, M62H, Messier, Planets, PSR B1620, PSR B1620-26, Sun's, The, Tucanae
related to N-body simulations · 12
Globular cluster → Additionally, Completed N-body, Computing, Fokker, In, Milky Way, N-body, Over, Planck, Plummer, The, Their

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Important terminology

globular clusters cluster stars star milky core galaxy way galaxies mass many luminosity distance age tidal known may formation one

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Globular clusterAverage luminosity~25 000 L☉1.00infobox
Globular clusterDensity~2 stars/cubic ly1.00infobox
Globular clusterDiscoveredAbraham Ihle, 16651.00infobox
Globular clusterMass range1K M☉ - >1M M☉1.00infobox
Globular clusterSize range10-300 ly across1.00infobox
Globular clusterTypeStar cluster1.00infobox
Globular clusteris aspheroidal conglomeration of stars that is bound together by gravity0.90text
the Suninstance ofcompared with Population I stars0.80text
have a higher proportion of hydrogeninstance ofcompared with Population I stars0.80text
heliuminstance ofcompared with Population I stars0.80text
a lower proportion of heavier elementsinstance ofcompared with Population I stars0.80text
the cool but luminous red giants.Constructing a Hinstance ofThe diagram also includes stars in later evolutionary stages0.80text

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