{{Short description|Large spiral galaxy in the constellation Centaurus}} {{Infobox Galaxy | name = ESO 269-57 | image = Galaxy.ap19.2003.750pix.jpg | image_size = 250px | caption = ESO 269-57 imaged by the [[European Southern Observatory|ESO]]'s [[Very Large Telescope]] | epoch = [[J2000]] | type =(R')SAB(r)ab<ref name="ned">{{cite web | title=NASA/IPAC Extragalactic Database | work=Results for ESO 269-57 | url=http://nedwww.ipac.caltech.edu/ | access-date=2017-08-27}}</ref> | ra = {{RA|13|10|04.4}}<ref name="ned" /> | dec = {{DEC|-46|26|14}}<ref name="ned" /> | dist_ly = {{convert|45.9|Mpc|Mly|abbr=on|lk=on|order=flip}}<ref name="ned" /> | group_cluster = [[NGC 5064 Group]] | z = 0.010360<ref name="ned" /> | h_radial_v = 3106 km/s<ref name="ned" /> | appmag_v = 12.49 | constellation name = [[Centaurus (constellation)|Centaurus]] | size_v = 3.2 x 2.3<ref name="ned" /> | names = PGC 45683<ref name="ned" /> |size=~{{convert|66.29|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)<ref name="ned" /> }} '''ESO 269-57''' is a large [[barred spiral galaxy]] located about 150 million [[light-year]]s away<ref>{{Cite web|url=https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=ESO+269-57&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2017-08-27}}</ref> in the [[constellation]] [[Centaurus (constellation)|Centaurus]]. ESO 269-57 has a diameter of about 200,000 [[light-year]]s.<ref name=":0">{{Cite web|url=http://www.eso.org/public/images/eso9924c/|title=Spiral galaxy ESO 269-57|last=|website=www.eso.org|language=en-GB|access-date=2017-08-27}}</ref> It is part of group of galaxies known as LGG 342.<ref name=":1">{{Cite journal|last=Garcia|first=A. M.|date=1993-07-01|title=General study of group membership. II - Determination of nearby groups|journal=Astronomy and Astrophysics Supplement Series|volume=100|pages=47–90|bibcode=1993A&AS..100...47G|issn=0365-0138}}</ref><ref>{{Cite web|url=https://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=ESO+269-+G+057|title=Detailed Object Classifications|website=ned.ipac.caltech.edu|access-date=2017-08-27}}</ref> which is also known as the [[NGC 5064 Group]]<ref name=":2">{{Cite journal|last1=Fouque|first1=P.|last2=Gourgoulhon|first2=E.|last3=Chamaraux|first3=P.|last4=Paturel|first4=G.|date=1992-05-01|title=Groups of galaxies within 80 Mpc. II. The catalogue of groups and group members.|url=https://ui.adsabs.harvard.edu/abs/1992A&AS...93..211F|journal=Astronomy and Astrophysics Supplement Series|volume=93|pages=211–233|bibcode=1992A&AS...93..211F |issn=0365-0138}}</ref><ref name=":1" /> which is part of the [[Centaurus Supercluster]].<ref name=":2" />
==Physical characteristics== ESO 269-57 has an inner ring surrounding its bright center and connected by its bar. The ring is made up of several tightly wound spiral arms. Surrounding the inner ring, are two outer arms made up of [[star-forming region]]s that appear to split into several branches of arms.<ref name=":0" />
==Supernova== One [[supernova]] has been observed in ESO 269-57. * '''SN 1992K''' ([[type Ia supernova|Type Ia]], mag. 16.23) was discovered by Roberto Antezana on March 3, 1992.<ref>{{cite journal |last1=Hamuy |first1=M. |last2=Maza |first2=J. |last3=Antezana |first3=R. |last4=Wells |first4=L. |last5=Smith |first5=R. C. |last6=Suntzeff |first6=N. |last7=Phillips |first7=M. M. |title=Supernova 1992K in ESO 269-G57 |journal=International Astronomical Union Circular |date=1992 |issue=5468 |page=1 |bibcode=1992IAUC.5468....1H | url = http://www.cbat.eps.harvard.edu/iauc/05400/05468.html#item1}}</ref><ref>{{cite web | website=Transient Name Server | title=SN 1992K | url=https://www.wis-tns.org/object/1992K | publisher = [[International Astronomical Union|IAU]] | access-date=26 December 2025}}</ref>
== See also == * [[List of spiral galaxies]] * [[NGC 1291]]
== References == {{reflist}}
== External links == {{WikiSky}}
{{Catalogs|PGC=45683}}
{{Centaurus}}
{{DEFAULTSORT:ESO 269-57}} [[Category:Barred spiral galaxies]] [[Category:Centaurus]] [[Category:Principal Galaxies Catalogue objects|45683]] [[Category:ESO objects|269-57]] [[Category:Ring galaxies]] [[Category:Hydra-Centaurus Supercluster]]
{{Barred-spiral-galaxy-stub}}