Contents 1 What type of thing are galaxies? 2 Types of galaxies 2.1 By morphological classification 2.2 By nucleus 2.3 By emissions 2.4 By interaction 2.5 By other aspect 3 Nature of galaxies 3.1 Galactic phenomena 3.2 Galaxy components 4 Galactic cartography 5 Larger constructs composed of galaxies 5.1 Intergalactic phenomena 6 Fields that study galaxies 7 Galaxy-related publications 7.1 Galaxy catalogs 8 Persons influential in the study of galaxies 9 See also 10 References 11 External links


What type of thing are galaxies?[edit] Galaxies can be described as all of the following: Astronomical object


Types of galaxies[edit] List of galaxies Lists of galaxies By morphological classification[edit] Galaxy morphological classification Disc galaxy Lenticular galaxy Barred lenticular galaxy Unbarred lenticular galaxy Spiral galaxy   (list) Anemic galaxy Barred spiral galaxy Flocculent spiral galaxy Grand design spiral galaxy Intermediate spiral galaxy Magellanic spiral Unbarred spiral galaxy Dwarf galaxy Dwarf elliptical galaxy Dwarf galaxy#Common dwarf galaxy types Dwarf spheroidal galaxy Dwarf spiral galaxy Elliptical galaxy Type-cD galaxy Irregular galaxy Barred irregular galaxy Peculiar galaxy Ring galaxy   (list) Polar-ring galaxy   (list) By nucleus[edit] Active galactic nucleus Blazar Low-ionization nuclear emission-line region Markarian galaxies Quasar Radio galaxy X-shaped radio galaxy Polar jet#Relativistic jet Seyfert galaxy By emissions[edit] Energetic galaxies Lyman-alpha emitter Luminous infrared galaxy Starburst galaxy Dwarf galaxy#Blue Compact Dwarf galaxies Pea galaxy Hot, dust-obscured galaxies (Hot DOGs) Low activity Low-surface-brightness galaxy Ultra diffuse galaxy By interaction[edit] Field galaxy Galactic tide Galaxy cloud Interacting galaxy Galaxy merger Jellyfish galaxy Satellite galaxy Stellar kinematics#Stellar streams Superclusters Galaxy filament Void galaxy By other aspect[edit] Galaxies named after people Largest galaxies Nearest galaxies


Nature of galaxies[edit] Galactic phenomena[edit] Galactic year – duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy.[1] Galaxy formation and evolution Galaxy merger Hubble's Law Galaxy components[edit] Components of galaxies in general Active galactic nucleus Galactic bulge Galactic disc Galactic habitable zone Galactic halo Dark matter halo Galactic corona Galactic magnetic fields Galactic plane Galactic spheroid Interstellar medium Spiral arms Supermassive black hole Structure of specific galaxies Milky Way components Galactic Center Galactic quadrant Spiral arms of the Milky Way Carina–Sagittarius Arm Norma Arm Orion Arm Perseus Arm Scutum–Centaurus Arm Galactic ridge


Galactic cartography[edit] Further information: Celestial cartography Galactic coordinate system Galactic longitude Galactic latitude Galaxy rotation curve


Larger constructs composed of galaxies[edit] Galaxy groups and clusters   (list) Local Group – galaxy group that includes the Milky Way Galaxy group Galaxy cluster Supercluster   (list) Brightest cluster galaxy Fossil galaxy group Galaxy filament Intergalactic phenomena[edit] Galactic orientation Galaxy merger Andromeda–Milky Way collision Hypothetical intergalactic phenomena Intergalactic travel Intergalactic dust Intergalactic stars Void   (list)


Fields that study galaxies[edit] Astronomy Galactic astronomy – studies the Milky Way galaxy. Extragalactic astronomy – studies everything outside the Milky Way galaxy, including other galaxies. Astrophysics Cosmology Physical cosmology


Galaxy-related publications[edit] Galaxy catalogs[edit] Atlas of Peculiar Galaxies Catalogue of Galaxies and Clusters of Galaxies David Dunlap Observatory Catalogue Lyon-Meudon Extragalactic Database Morphological Catalogue of Galaxies Multiwavelength Atlas of Galaxies Principal Galaxies Catalogue Shapley-Ames Catalog Uppsala General Catalogue Vorontsov-Vel'yaminov Interacting Galaxies


Persons influential in the study of galaxies[edit] Galileo Galilei – discovered that the Milky Way is composed of a huge number of faint stars.[2][3] Edwin Hubble


See also[edit] Barred spiral galaxy Galaxy color–magnitude diagram Dark galaxy Faint blue galaxy Galaxy color–magnitude diagram Illustris project Protogalaxy Metallicity#Population IIIstars Cosmos Redshift 7 Large quasar group#List of LQGs List of quasars


References[edit] ^ Cosmic Year, Fact Guru, University of Ottawa ^ Galileo Galilei, Sidereus Nuncius (Venice, (Italy): Thomas Baglioni, 1610), pages 15 and 16. English translation: Galileo Galilei with Edward Stafford Carlos, trans., The Sidereal Messenger (London, England: Rivingtons, 1880), pages 42 and 43. ^ O'Connor, J. J.; Robertson, E. F. (November 2002). "Galileo Galilei". University of St. Andrews. Retrieved January 8, 2007. 


External links[edit] Find more aboutGalaxiesat Wikipedia's sister projects Definitions from Wiktionary Media from Wikimedia Commons News from Wikinews Quotations from Wikiquote Texts from Wikisource Textbooks from Wikibooks Learning resources from Wikiversity This outline displayed as a mindmap, at wikimindmap.com Galaxies on In Our Time at the BBC. Galaxies, SEDS Messier pages An Atlas of The Universe Galaxies — Information and amateur observations The Oldest Galaxy Yet Found Galaxy classification project, harnessing the power of the internet and the human brain How many galaxies are in our Universe? The most beautiful galaxies on Astronoo 3-D Video (01:46) – Over a Million Galaxies of Billions of Stars each – BerkeleyLab/animated. v t e Outlines General reference Culture and the arts Geography and places Health and fitness History and events Mathematics and logic Natural and physical sciences People and self Philosophy and thinking Religion and belief systems Society and social sciences Technology and applied sciences Retrieved from "https://en.wikipedia.org/w/index.php?title=Outline_of_galaxies&oldid=821848853" Categories: GalaxiesWikipedia outlinesHidden categories: Orphaned articles from January 2018All orphaned articles


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Wikipedia:OrphanHelp:LinkOutline (list)GalaxySagittarius A*Astronomical ObjectList Of GalaxiesLists Of GalaxiesGalaxy Morphological ClassificationDisc GalaxyLenticular GalaxyBarred Lenticular GalaxyUnbarred Lenticular GalaxySpiral GalaxyList Of Spiral GalaxiesAnemic GalaxyBarred Spiral GalaxyFlocculent Spiral GalaxyGrand Design Spiral GalaxyIntermediate Spiral GalaxyMagellanic SpiralUnbarred Spiral GalaxyDwarf GalaxyDwarf Elliptical GalaxyDwarf GalaxyDwarf Spheroidal GalaxyDwarf Spiral GalaxyElliptical GalaxyType-cD GalaxyIrregular GalaxyBarred Irregular GalaxyPeculiar GalaxyRing GalaxyList Of Ring GalaxiesPolar-ring GalaxyList Of Polar-ring GalaxiesActive Galactic NucleusBlazarLow-ionization Nuclear Emission-line RegionMarkarian GalaxiesQuasarRadio GalaxyX-shaped Radio GalaxyPolar JetSeyfert GalaxyLyman-alpha EmitterLuminous Infrared GalaxyStarburst GalaxyDwarf GalaxyPea GalaxyHot, Dust-obscured GalaxiesLow-surface-brightness GalaxyUltra Diffuse GalaxyField GalaxyGalactic TideGalaxy CloudInteracting GalaxyGalaxy MergerJellyfish GalaxySatellite GalaxyStellar KinematicsSuperclusterGalaxy FilamentVoid GalaxyList Of Galaxies Named After PeopleList Of Largest GalaxiesList Of Nearest GalaxiesGalactic YearGalaxy Formation And EvolutionGalaxy MergerHubble's LawActive Galactic NucleusGalactic BulgeDisc (galaxy)Galactic Habitable ZoneGalactic HaloDark Matter HaloGalactic CoronaGalactic Magnetic FieldsGalactic PlaneGalactic SpheroidInterstellar MediumSpiral ArmSupermassive Black HoleMilky WayGalactic CenterGalactic QuadrantCarina–Sagittarius ArmNorma ArmOrion ArmPerseus ArmScutum–Centaurus ArmGalactic RidgeCelestial CartographyGalactic Coordinate SystemGalactic LongitudeGalactic LatitudeGalaxy Rotation CurveGalaxy Groups And ClustersList Of Galaxy Groups And ClustersLocal GroupGalaxy GroupGalaxy ClusterSuperclusterSuperclusterBrightest Cluster GalaxyFossil Galaxy GroupGalaxy FilamentGalactic OrientationGalaxy MergerAndromeda–Milky Way CollisionIntergalactic TravelIntergalactic DustIntergalactic StarVoid (astronomy)List Of VoidsAstronomyGalactic AstronomyExtragalactic AstronomyAstrophysicsCosmologyPhysical CosmologyAtlas Of Peculiar GalaxiesCatalogue Of Galaxies And Clusters Of GalaxiesDavid Dunlap Observatory CatalogueLyon-Meudon Extragalactic DatabaseMorphological Catalogue Of GalaxiesMultiwavelength Atlas Of GalaxiesPrincipal Galaxies CatalogueShapley-Ames CatalogUppsala General CatalogueVorontsov-Vel'yaminov Interacting GalaxiesGalileo GalileiEdwin HubbleBarred Spiral GalaxyGalaxy Color–magnitude DiagramDark GalaxyFaint Blue GalaxyGalaxy Color–magnitude DiagramIllustris ProjectProtogalaxyMetallicityCosmos Redshift 7Large Quasar GroupList Of QuasarsUniversity Of OttawaUniversity Of St. AndrewsWikipedia:Wikimedia Sister ProjectsIn Our Time (radio Series)BBCTemplate:Outline FooterTemplate Talk:Outline FooterPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesHelp:CategoryCategory:GalaxiesCategory:Wikipedia OutlinesCategory:Orphaned Articles From January 2018Category:All Orphaned ArticlesDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer



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