List of galaxies
Updated: 5/24/2026, 6:52:19 PM Wikipedia source
There are an estimated 100 billion galaxies in all of the observable universe. On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list). The first attempts at systematic catalogues of galaxies were made in the 1960s, with the Catalogue of Galaxies and Clusters of Galaxies listing 29,418 galaxies and galaxy clusters, and with the Morphological Catalogue of Galaxies, a putatively complete list of galaxies with photographic magnitude above 15, listing 30,642. In the 1980s, the Lyons Groups of Galaxies listed 485 galaxy groups with 3,933 member galaxies. Galaxy Zoo is a project aiming at a more comprehensive list: launched in July 2007, it has classified over one million galaxy images from The Sloan Digital Sky Survey, The Hubble Space Telescope and the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey.
Tables
| Image | Galaxy | Constellation | Origin of name | Notes |
| | Alcyoneus | Lynx | A low-exitation, Fanaroff and Riley Class II radio galaxy, one of the largest discovered. | |
| | Andromeda I | Andromeda | Andromeda I was named because the galaxy is in the constellation Andromeda | Andromeda I is a dwarf spheroidal galaxy (dSph) about 2 million light-years away in the constellation Andromeda. Andromeda I is part of the local group of galaxies and a satellite galaxy of the Andromeda Galaxy (M31). It is roughly 3 degrees south and slightly east of M31. As of 2005, it is the closest known dSph companion to M31 at an estimat |
| | Andromeda Galaxy | Andromeda | Andromeda, which is shortened from "Andromeda Galaxy", gets its name from the area of the sky in which it appears, the constellation of Andromeda. | Andromeda is the closest big galaxy to the Milky Way and is expected to collide with the Milky Way around 4 billion years from now. The two will eventually merge into a single new galaxy called Milkdromeda According to simulations, this object would probably be a giant elliptical galaxy, but with a centre showing less stellar density than current |
| | Ambartsumian's Knot | Ursa Major | Appearance is similar to Ambartsumian's knot | NGC 3561, also known as Arp 105, is a pair of interacting galaxies NGC 3561A and NGC 3561B within the galaxy cluster Abell 1185 in Ursa Major. It was discovered by British astronomer John Herschel on 30 March 1827. Its common name is "the Guitar" and contains a small tidal dwarf galaxy known as Ambartsumian's Knot that is believed to be the remnant |
| | Antennae Galaxies | Corvus | Appearance is similar to an insect's antennae. | Two colliding galaxies |
| | Backward Galaxy | Centaurus | It appears to rotate backwards, as the tips of the spiral arms point in the direction of rotation. | |
| | Barnard's Galaxy | Named after Edward Emerson Barnard. | ||
| | Bear Paw Galaxy | Lynx | It resembles the appearance of a bear's claw. | Also known as "Bear Claw Galaxy." |
| | Black Eye Galaxy | Coma Berenices | It has a spectacular dark band of absorbing dust in front of the galaxy's bright nucleus, giving rise to its nicknames of the "Black Eye" or "Evil Eye" galaxy. | Also known as "Sleeping Beauty Galaxy." |
| | Blinking Galaxy | Serpens | Its difficulty of viewing in a small telescope and tendency to go in and out of view. | |
| | Bode's Galaxy | Ursa Major | Named for Johann Elert Bode who discovered this galaxy in 1774. | Also known as Messier 81. The largest galaxy in the M81 Group. It harbors a supermassive black hole 70 million times the mass of the Sun. |
| | Butterfly Galaxies | Virgo | Looks are similar to a butterfly. | |
| | Cartwheel Galaxy | Sculptor | Its visual appearance is similar to that of a spoked cartwheel. | The largest in the Cartwheel Galaxy group, made up of four spiral galaxies |
| | Cigar Galaxy | Ursa Major | Appears similar in shape to a cigar. | Also known as Messier 82 or M82 |
| | Circinus Galaxy | Circinus | Named after the constellation it is located in (Circinus). | |
| | Cocoon Galaxy | Canes Venatici | Its resemblance in shape to a cocoon | |
| | Coma Pinwheel Galaxy | Coma Berenices | Named after its resemblance to the Pinwheel Galaxy and its location in the Coma Berenices constellation. | Also known as Messier 99 or M99 |
| | Comet Galaxy | Sculptor | This galaxy is named after its unusual appearance, looking like a comet. | The comet effect is caused by tidal stripping by its galaxy cluster, Abell 2667. |
| | Condor Galaxy | Pavo | Named after a condor, a type of vulture that is one of the largest flying birds. | The largest known spiral galaxy, it has a diameter of over 665,300 light-years (204 kiloparsecs). It is tidally disturbed by the smaller lenticular galaxy IC 4970. |
| | Cosmos Redshift 7 | Sextans | The name of this galaxy is based on a Redshift (z) measurement of nearly 7 (actually, z = 6 ). | Galaxy Cosmos Redshift 7 is reported to be the brightest of distant galaxies (z > 6) and to contain some of the earliest first stars (first generation; Population III) that produced the chemical elements needed for the later formation of planets and life as we know it. |
| | Dusty Hand Galaxy | Camelopardalis | Named after the dust lanes and spiral arms of the galaxy. | |
| | Eye of God | Eridanus | Named after its structural appearance | A prototype for multi-arm spiral galaxies |
| | Eye of Sauron | Canes Venatici | Due to its resemblance to the Eye of Sauron from The Lord of the Rings. | |
| | Fireworks Galaxy | Cygnus and Cepheus | Due to its bright and spotty appearance | Active starburst galaxy |
| | Fried Egg Galaxy | Pegasus | Due to its similar appearance to a fried egg | |
| | Godzilla Galaxy | Perseus | Its extremely large size | |
| | Helix Galaxy | Ursa Major | Its shape resembles a helix | |
| | Grasshopper | Lynx | Named after its appearance to a grasshopper | Two colliding galaxies |
| | Hidden Galaxy | Camelopardalis | The difficulty in observing this object makes it 'hidden' though it can readily be detected even with binoculars. | |
| | Hockey Stick Galaxies | Canes Venatici | Its elongated and curved appearance resembles a hockey stick. | Also known as Crowbar Galaxy |
| | Hoag's Object | Serpens Caput | This is named after Art Hoag, who discovered this ring galaxy. | It is of the subtype Hoag-type galaxy, and may in fact be a polar-ring galaxy with the ring in the plane of rotation of the central object. |
| | Knife Edge Galaxy | Draco | Named after its thin shape, similar to knife's edge. | |
| | Large Magellanic Cloud | Dorado/Mensa | Named after Ferdinand Magellan | This is the fourth-largest galaxy in the Local Group, and forms a pair with the SMC, and from recent research, may not be part of the Milky Way system of satellites at all. |
| | Lindsay-Shapley Ring | Volans | Named after its discoverer, Eric Lindsay, his professor Harlow Shapley, and its nature as a ring galaxy. | The ring is the result of collision with another galaxy |
| | Little Sombrero Galaxy | Pegasus | Named after its similarity to the Sombrero Galaxy. | |
| | Malin 1 | Coma Berenices | Discovered and named by David Malin. | |
| | Meathook Galaxy | Volans | After its appearance resembling a meathook. | |
| | Medusa Merger | Ursa Major | Ejected dust from the merging galaxies is said to look like the snakes that the Gorgon Medusa from Greek mythology had on her head. | |
| | Sculptor Dwarf Galaxy | Sculptor | Similar to the Sculpture Galaxies | Also known as Sculptor Dwarf Elliptical Galaxy, Sculptor Dwarf Spheroidal Galaxy, and formerly as the Sculptor System |
| | Mice Galaxies | Coma Berenices | Appearance is similar to a mouse. | |
| | Small Magellanic Cloud | Tucana | Named after Ferdinand Magellan | This forms a pair with the LMC, and from recent research, may not be part of the Milky Way system of satellites at all. |
| | Mayall's Object | Ursa Major | This is named after Nicholas Mayall, of the Lick Observatory, who discovered it. | Also called VV 32 and Arp 148, this is a very peculiar looking object, and is likely to be not one galaxy, but two galaxies undergoing a collision. Event in images is a spindle shape and a ring shape. |
| | Milky Way | Sagittarius (centre) | The appearance from Earth of the galaxy—a band of light | The galaxy containing the Sun and its Solar System, and therefore Earth. |
| | Needle Galaxy | Coma Berenices | Named due to its slender appearance. | Also known as Caldwell 38 |
| | Wolf-Lundmark-Melotte | Cetus | Named for the three astronomers instrumental in its discovery and identification. | |
| | Paramecium Galaxy | Pegasus | Named after its appearance to the organism Paramecium | It is included in the Atlas of Peculiar Galaxies in the category galaxies with detached segments. |
| | Peekaboo Galaxy | Hydra | Galaxy (aka HIPASS J1131-31) was hidden behind a relatively fast-moving foreground star (TYC 7215–199–1) and became observable when the star moved aside. | Galaxy, relatively nearby, is considered one of the most metal-poor ("extremely metal-poor" (XMP)), least chemically enriched, and seemingly primordial, galaxies known. |
| | Pinwheel Galaxy | Ursa Major | Similar in appearance to a pinwheel. | Also known as Messier 101 or M101 |
| | Porphyrion | Draco |
| Galaxy | Apparent Magnitude | Distance | Constellation | Notes |
| Milky Way | −6 | 0 | Sagittarius (centre) | This is the galaxy containing the Sun and its Solar System, and therefore Earth. Most things visible to the naked eye in the sky are part of it, including the Milky Way composing the Zone of Avoidance. |
| Large Magellanic Cloud | 0 | 160 kly (49 kpc) | Dorado/Mensa | Visible only from the southern hemisphere. It is also the brightest patch of nebulosity in the sky. |
| Small Magellanic Cloud (NGC 292) | 2 | 200 kly (61 kpc) | Tucana | Visible only from the southern hemisphere. |
| Andromeda Galaxy (M31, NGC 224) | 3 | 2 Mly (770 kpc) | Andromeda | Once called the Great Andromeda Nebula, it is situated in the Andromeda constellation. |
| Triangulum Galaxy (M33, NGC 598) | 5 | 2 Mly (890 kpc) | Triangulum | Being a diffuse object, its visibility is strongly affected by even small amounts of light pollution, ranging from easily visible in direct vision in truly dark skies to a difficult averted vision object in rural/suburban skies. |
| Centaurus A (NGC 5128) | 6 | 13 Mly (4 Mpc) | Centaurus | Centaurus A has been spotted with the naked eye by Stephen James O'Meara. |
| Bode's Galaxy (M81, NGC 3031) | 6 | 12 Mly (3 Mpc) | Ursa Major | Highly experienced amateur astronomers may be able to see Messier 81 under exceptional observing conditions. |
| First | Galaxy | Constellation | Year | Notes |
| First spiral galaxy | Whirlpool Galaxy | Canes Venatici | 1845 | Lord William Parsons, Earl of Rosse discovered the first spiral nebula from observing M51 (recognition of the spiral shape without the recognition of the object as outside the Milky Way). |
| Notion of galaxy | Milky Way & Andromeda Galaxy | Sagittarius (centre) & Andromeda | 1923 | Recognition of the Milky Way and the Andromeda nebula as two separate galaxies by Edwin Hubble. |
| First Seyfert galaxy | NGC 1068 (M77) | Cetus | 1943 (1908) | The characteristics of Seyfert galaxies were first observed in M77 in 1908; however, Seyferts were defined as a class in 1943. |
| First radio galaxy | Cygnus A | Cygnus | 1951 | Of several items, then called radio stars, Cygnus A was identified with a distant galaxy, being the first of many radio stars to become a radio galaxy. |
| First quasar | 3C 273 | Virgo | 1962 | 3C273 was the first quasar with its redshift determined, and by some considered the first quasar. |
| 3C 48 | Triangulum | 1960 | 3C48 was the first "radio-star" with an unreadable spectrum, and by others considered the first quasar. | |
| First superluminal galactic jet | 3C 279 | Virgo | 1971 | The jet is emitted by a quasar |
| First low surface brightness galaxy | Malin 1 | Coma Berenices | 1986 | Malin 1 was the first verified LSB galaxy. LSB galaxies had been first theorized in 1976. |
| First superluminal jet from a Seyfert | III Zw 2 | Pisces | 2000 |
| Class | Galaxy | Constellation | Date | Notes |
| BL Lac object | BL Lacertae (BL Lac) | Lacerta | This AGN was originally catalogued as a variable star, and "stars" of its type are considered BL Lac objects. | |
| Hoag-type Galaxy | Hoag's Object | Serpens Caput | This is the prototype Hoag-type ring galaxy | |
| Giant LSB galaxy | Malin 1 | Coma Berenices | 1986 | |
| FR II radio galaxy (double-lobed radio galaxy) | Cygnus A | Cygnus | 1951 | |
| Starburst galaxy | Cigar Galaxy | Ursa Major | ||
| Flocculent spiral galaxy | NGC 2841 | Ursa Major |
| Title | Galaxy | Constellation | Distance | Notes |
| Closest galaxy | Ursa Major III | Ursa Major | 32,600 light-years (10 kiloparsecs) | A proposed dwarf galaxy known as the Canis Major Overdensity may lie closer at 25,000 light-years, however its status as a galaxy is disputed. |
| Most distant galaxy | MoM-z14 | Sextans | z=14 | Existed 280 million years after the Big Bang. |
| Closest quasar | Markarian 231 | Ursa Major | z=0 | Sometimes classified as a Type-2 Seyfert galaxy, though mostly considered to be the nearest quasar. |
| Most distant quasar | UHZ1 | Sculptor | z=10 | Gravitationally lensed quasar behind Pandora's Cluster (Abell 2744). It is also the first quasar observed beyond a redshift of 10. |
| Closest radio galaxy | Centaurus A (NGC 5128, PKS 1322–427) | Centaurus | 13 Mly | |
| Most distant radio galaxy | ILT J2336+1842 | Pegasus | z=6 | Another radio galaxy, GLEAM J0917-0012, may either lie at z=2 or as distant as z=8 . |
| Closest Seyfert galaxy | Circinus Galaxy | Circinus | 13 Mly | Closest undisputed Seyfert galaxy. It has been proposed that the nearby (2 Mly) dwarf galaxy NGC 185 may also be a Seyfert, though this status has been disputed. |
| Most distant Seyfert galaxy | HSC 0921+0007 | Hydra | z=6 | Seyfert 1 galaxy; also a low-luminosity quasar. |
| Closest blazar | Markarian 421 (Mrk 421, Mkn 421, PKS 1101+384, LEDA 33452) | Ursa Major | z=0 | This is a BL Lac object. |
| Most distant-known blazar | Q0906+6930 | Ursa Major | z=5 | This is a flat spectrum radio-loud quasar-type blazar. |
| Closest BL Lac object | Centaurus A | Centaurus | 13 Mly | Misaligned BL Lac nucleus. Also the closest radio galaxy (see above) |
| Most distant BL Lac object | FIRST J233153 +112952 | Pegasus | z=6 | |
| Closest LINER | ||||
| Most distant LINER | z= | |||
| Closest LIRG | ||||
| Most distant LIRG | z= | |||
| Closest ULIRG | IC 1127 (Arp 220/APG 220) | Serpens Caput | z=0 | |
| Most distant ULIRG | z= | |||
| Closest starburst galaxy | IC 10 (UGC 192, PGC 1305) | Cassiopeia | 750 ± 150 kpc (2,450,000 ± 489,000 ly) | A mild starburst galaxy, this is the only such galaxy within the Local Group. |
| Most distant starburst galaxy | SPT 0243-49 | Horologium | z=5 | |
| Most distant spiral galaxy | Zhúlóng | Sextans | z=5 | |
| Closest jellyfish galaxy | IC 3418 | Virgo | 17 Mpc | |
| Most distant jellyfish galaxy | COSMOS2020-635829 | Sextans | z=1 | A candidate jellyfish galaxy. |
References
- Excluding the Sun. Using the formula for addition of apparent magnitudes, the added magnitudes of all stars in the Milky
- z represents redshift, a measure of recessional velocity and inferred distance due to cosmological expansion.
- quasars and other AGN are not included on this list, since they are only galactic cores, unless the host galaxy was obse
- antiquity – 1913 (based on redshift); antiquity – 1930 (based on Cepheids)
- The quick-look major axis physical diameter given by NED of 273 kiloparsecs (893,000 light-years) was based on an earlie
- How Many Galaxies Are There? Astronomers Are Revealing the Enormity of the Universehttps://www.discovermagazine.com/the-sciences/how-many-galaxies-are-there-astronomers-are-revealing-the-enormity-of-the
- MNRAShttps://doi.org/10.1093%2Fmnras%2Fstu1817
- "Milkomeda, Our Future Home"https://web.archive.org/web/20150928082648/https://www.cfa.harvard.edu/news/su200822
- Monthly Notices of the Royal Astronomical Societyhttps://doi.org/10.1111%2Fj.1365-2966.2008.13048.x
- The Caldwell Objectshttps://books.google.com/books?id=3Hg6YHgx9nAC&pg=PA242
- The Astronomical Journalhttps://ui.adsabs.harvard.edu/abs/1994AJ....107..173R
- Messier's Nebulae and Star Clusters
- "NASA to Reexamine Nicknames for Cosmic Objects - NASA"https://www.nasa.gov/solar-system/nasa-to-reexamine-nicknames-for-cosmic-objects/
- NASA/IPAC Extragalactic Databasehttp://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=56033
- Proceedings of the International Astronomical Unionhttps://doi.org/10.1017%2FS1743921313001543
- The Astrophysical Journalhttps://arxiv.org/abs/1504.01734
- "NGC 4151: An Active Black Hole in the "Eye of Sauron""http://chandra.harvard.edu/photo/2011/n4151/
- "NASA's Hubble Surveys Gigantic Galaxy | NASA"https://www.nasa.gov/feature/goddard/2020/nasas-hubble-surveys-gigantic-galaxy
- wwwhttps://www.spacetelescope.org/images/heic0810bq/
- wwwhttps://web.archive.org/web/20201220131824/https://www.spacetelescope.org/images/potw1727a/