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Omega Centauri

Omega Centauri (ω Cen, NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 17,090 light-years (5,240 parsecs), it is the largest known globular cluster in the Milky Way at a diameter of roughly 150 light-years. It is…

History, Observation history & Properties

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Observation history

PtolemyAlmagestJohann BayerDesignateUranometria
11 related topics

Properties

EarthMoonLocal GroupMayall IIAndromeda Galaxy
15 related topics

In fiction

Ian Douglas
1 related topics

Overview

Globular clusterConstellationCentaurusEdmond HalleyLight-years
10 related topics

Key facts & relationships

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Apparent dimensions (V)
36′.3
Apparent magnitude (V)
3.9
Class
VIII
Constellation
Centaurus
Declination
−47° 28′ 46.1″
Distance
15.8 ± 1.1 kly (4.84 ± 0.34 kpc)

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Overview

Observation history

Properties

In fiction

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Map overview Semantic statistics

Omega Centauri

Nodes42
Edges41
Triples106
Avg. degree1.95
Density0.047619
Components1

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Omega Centauri

Top relations

related to history · 27
Omega Centauri → AD, Almagest, Around, Cheseaux, Edmond Halley, English, French, German, Greco-Roman, Halley, In, It, James Dunlop, Jean-Philippe, Johann Bayer, Lacaille, Philosophical Transactions, Ptolemy, Ptolemy's, Quae
related to External links · 25
Omega Centauri → Archived, Articles, Astrophoto, Centauri, Constellation GuideOmega Centauri, DSS2, Dwarf Galaxy, ESA/Hubble, Former Core, Galactic Globular Clusters Database, GALEX, Hubblesite, Hydrogen, IRAS, NGC, Omega Centauri Fact Sheet, Peering, Proud Cluster, Sad Remnant, SDSS
related to Evidence of a central black hole · 14
Omega Centauri → By, Calculations, Cerro Pachón, Chile, Gemini Observatory, Hubble Space Telescope, Hubble's Advanced Camera, More, Noyola, Surveys, The, They, This, Using
related to Properties · 12
Omega Centauri → Andromeda Galaxy, At, Earth, It, Local Group, Mayall II, Milky Way, Moon, Of, Orbiting, Population II, The
related to Disrupted dwarf galaxy · 7
Omega Centauri → Earth, Indeed, It, Kapteyn's Star, Like Mayall II, Milky Way, Omega Centauri's
related to In fiction · 7
Omega Centauri → Atlan, German, Ian Douglas, Kapteyn's Star, Perry Rhodan, Singularity, The
Apparent dimensions (V) · 1
Omega Centauri → 36′.3
Apparent magnitude (V) · 1
Omega Centauri → 3.9
Class · 1
Omega Centauri → VIII
Constellation · 1
Omega Centauri → Centaurus

Important terminology Word statistics

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Important terminology

omega centauri cluster stars globular core galaxy black hole clusters milky way dwarf mass center disrupted object solar masses ngc

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Omega CentauriApparent dimensions (V)36′.31.00infobox
Omega CentauriApparent magnitude (V)3.91.00infobox
Omega CentauriClassVIII1.00infobox
Omega CentauriConstellationCentaurus1.00infobox
Omega CentauriDeclination−47° 28′ 46.1″1.00infobox
Omega CentauriDistance15.8 ± 1.1 kly (4.84 ± 0.34 kpc)1.00infobox
Omega CentauriEstimated age11.52 Gyr1.00infobox
Omega CentauriMass(4.05±0.1)×106 M☉1.00infobox
Omega CentauriMetallicity[Fe/H] = –1.35 dex1.00infobox
Omega CentauriOther designationsNGC 5139, GCl 24, ω Centauri, Caldwell 80, Mel 1181.00infobox
Omega CentauriRadius86 ± 6 ly1.00infobox
Omega CentauriRight ascension13h 26m 47.28s1.00infobox
Omega Centauriis acore of a dwarf galaxy that was disrupted and absorbed by the Milky Way0.90text

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