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Galaxy

A galaxy is a physical system of stars, planetary systems, stellar remnants, substellar objects, interstellar gas, dust, and dark matter bound together by gravity. The word is derived from the Greek galaxias (γαλαξίας), meaning 'milky', a reference to the Milky Way galaxy that contains the Solar System. Galaxies, averaging an estimated 100 million stars…

History, Observation history & Types and morphology

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Overview

Etymology

Nomenclature

Observation history

Types and morphology

Variants

Physical diameters

Larger-scale structures

Magnetic fields

Formation and evolution

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Galaxy

Nodes307
Edges306
Triples282
Avg. degree1.99
Density0.006515
Components1

How this topic connects Entity context

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Galaxy

Top relations

related to Milky Way · 27
Galaxy → According, Andalusian, Arabian, Aristotle, Avempace, BCE, Biruni, CE, Democritus, Earth, Greek, Haytham, Ibn, In, Jawziyya, Jupiter, Mars, Milky Way, Milky Way's, Mohani Mohamed
related to Nomenclature · 27
Galaxy → All, Andromeda Galaxy, Astronomers, Catalogue, CGCG, Clusters, For, Galaxies, IC, Index Catalogue, It, LEDA, M109, Magellanic Clouds, MCG, Messier, Millions, Morphological Catalogue, New General Catalogue, NGC
related to Distinction from other nebulae · 26
Galaxy → Abd, Al Bakr, Andromeda Galaxy, Arabs, Book, Emanuel Swedenborg, Europeans, Fixed Stars, In, It, Johannes Hevelius's, Large Magellanic Cloud, Magellan's, Milky Way, Milky Ways, Persian, Pierre Louis Maupertuis, Principia, Rahman, Simon Marius
related to Modern research · 19
Galaxy → Among, Avoidance, Beginning, Doppler, Hendrik, Hubble, Hubble Space Telescope, Hulst, Improved, In, Milky Way, Particularly, The Hubble Deep Field, These, This, Today, Vera Rubin, With, Zone
related to Other morphologies · 17
Galaxy → An Irr-I, Andromeda Galaxy, Hubble, Irr-II, Irregular, It, Magellanic Clouds, Milky Way, Milky Way's, Multiple, Nearby, One, Peculiar, S0, SB0, Such, These
related to Etymology · 14
Galaxy → Andromeda Galaxy, Edwin Hubble, For, French, Galaxies, Greek, Harlow Shapley, Hubble's, In, Medieval Latin, Milky Way, Most, Observations, The
related to Active galaxy · 12
Galaxy → AGN, AGNs, In, Models, Seyfert, SMBH, SMBH's, Some, The, The AGN's, There, UV
related to External links · 12
Galaxy → BBCAn Atlas, Berkeley Lab, Flight Through, In Our Time, Information, NASA/IPAC Extragalactic Database, NED, NED Redshift-Independent DistancesGalaxies, Sloan Digital Sky Survey, The UniverseGalaxies, Universe, Zoo
related to Interacting · 11
Galaxy → At, Canis Major Dwarf Galaxy, Collisions, If, Instead, Interactions, Mergers, Near, Sagittarius Dwarf Elliptical Galaxy, The, The Milky Way
related to Magnetic fields · 11
Galaxy → Antennae, By, Earth's, Galaxies, Gauss, In, M33, Milky Way's, NGC, Radio-faint, The

Important terminology Word statistics

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Important terminology

galaxies stars milky way spiral formation gas clusters galactic star dark andromeda hubble universe radio elliptical matter light large active

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Galaxyis aphysical system of stars0.90text
Galaxyis atype of elliptical galaxy where the stars in its halo are arranged in concentric shells0.90text
Galaxyis aintermediate form that has properties of both elliptical and spiral galaxies0.90text
Galaxyis aextremely-low-luminosity galaxy0.90text
Galaxyis agalaxy with giant regions of radio emission extending well beyond its visible structure0.90text
Galaxyis aspecial class of objects characterized by the presence of radio lobes generated by relativistic jets powered by the central galaxy's supermassive black hole0.90text
Galaxyis amember of an association named the Local Group0.90text
ellipticalinstance ofSupermassive black holes are a common feature at the centers of galaxies.Galaxies are categorised according to their visual characteristics0.80text
spiralinstance ofSupermassive black holes are a common feature at the centers of galaxies.Galaxies are categorised according to their visual characteristics0.80text
or irregularinstance ofSupermassive black holes are a common feature at the centers of galaxies.Galaxies are categorised according to their visual characteristics0.80text
the Sloan Digital Sky Surveyinstance ofMillions of fainter galaxies are known by their identifiers in sky surveys0.80text
star formation rate in starburst galaxiesinstance ofit may miss certain important characteristics of galaxies0.80text

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