View source for NGC 5679 Group

{{Short description|Triplet of galaxies  in the constellation Virgo}}
{{Infobox galaxy
| name = NGC 5679
| image = NGC 5679 Arp 274HST.jpg
| caption = Arp 274 (NGC 5679C, NGC 5679B and NGC 5679A) imaged by the [[Hubble Space Telescope]]
| epoch = J2000
| ra = '''Center''':&nbsp;{{RA|14|35|08.763}}<ref name="ned">{{cite web|work=NASA/IPAC Extragalactic Database|title=Results for NGC 5679|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+5679&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
  | access-date=January 15, 2017}}</ref><br>'''Left''':&nbsp;{{RA|14|35|11.0}}<ref name=simbad1>{{cite simbad|title=NGC 5679C|access-date=15 January 2017}}</ref><br>'''Right''':&nbsp;{{RA|14|35|06.354}}<ref name=simbad2>{{cite simbad|title=NGC 5679A|access-date=15 January 2017}}</ref>
| dec = '''Center''':&nbsp;{{DEC|+05|21|32.41}}<ref name="ned" /><br>'''Left''':&nbsp;{{DEC|+05|21|16}}<ref name=simbad1/><br>'''Right''':&nbsp;{{DEC|+05|21|24.41}}<ref name=simbad2/>
| constellation name = [[Virgo (constellation)|Virgo]]
| z = '''Center''':&nbsp;0.028900<ref name="ned" /><br>'''Right''':&nbsp;0.02487<ref name=simbad1/>
| h_radial_v= '''Center''':&nbsp;8654<br>'''Left''':&nbsp;7483<br>'''Right''':&nbsp;7618
| type = '''Center''':&nbsp;Sbc<ref name=simbad0>{{cite simbad|title=NGC 5679B|access-date=15 January 2017}}</ref><br>'''Right''':&nbsp;S<ref name=simbad2/>
| appmag_b = '''Center''':&nbsp;14.5<ref name=simbad0/><br>'''Left''':&nbsp;16<ref name=simbad1/><br>'''Right''':&nbsp;14.5<ref name=simbad2/>
| size_v = '''Center''':&nbsp;1.013'&nbsp;&times;&nbsp;0.669'<ref name=simbad0/><br>'''Left''':&nbsp;0.17'&nbsp;&times;&nbsp;0.11'<ref name=simbad1/><br>'''Right''':&nbsp;0.393'&nbsp;&times;&nbsp;0.338'<ref name=simbad2/>
| notes = Interacting galaxy triple
| names = '''Center''': [[New General Catalogue|NGC]] 5679B, [[Principal Galaxies Catalogue|PGC]] 52132, [[Uppsala General Catalogue|UGC]] 9383, [[Morphological Catalogue of Galaxies|MCG]]+01-37-035, VV 458<br>'''Left''': [[New General Catalogue|NGC]] 5679C, [[Principal Galaxies Catalogue|PGC]] 52129, [[Morphological Catalogue of Galaxies|MCG]]+01-37-036<br>'''Right''': [[New General Catalogue|NGC]] 5679A, [[Principal Galaxies Catalogue|PGC]] 52130, [[Morphological Catalogue of Galaxies|MCG]]+01-37-034, [[Sloan Digital Sky Survey|SDSS]]&nbsp;J143506.38+052124.5
}}
The '''NGC 5679''' group, also known as '''Arp 274''', is a triplet of [[galaxies]], [[Morphological Catalogue of Galaxies|MCG]]+1-37-36, MCG+1-37-35 and MCG+1-37-34, spanning about {{val|200000}} [[light-year]]s and at some 400 million light-years from Earth in the constellation [[Virgo (constellation)|Virgo]].<ref name="ned"/> Arp 274 refers to the [[Atlas of Peculiar Galaxies]], compiled by [[Halton Arp]] in 1966. Galaxies 269 through 274 in his catalogue are galaxies that appear to have connected [[Spiral arm|arms]].

NGC 5679 was imaged by [[Hubble Space Telescope|Hubble]] in 2009, in a combination of blue, [[Visible spectrum|visible]], [[infrared]] and [[H-alpha|H&alpha;]] filters. The photograph shows that all three galaxies, especially the galaxies on the left and right, are [[starburst galaxies]], meaning that there is currently a large amount of [[star formation]] in the galaxies. [[Interstellar dust]] can be seen between the areas of star formation. Two bright stars can be seen just above the galaxy on the right side; these are foreground stars that are actually part of our own galaxy.<ref name=aan/>

[[Redshift]] measurements of the three galaxies give these [[radial velocity]] values, from left to right: 7483, 8654, and 7618 [[Meter per second|km/s]].<ref name=aan/> The relatively high redshift for the center galaxy means that it is much farther away - about 65 million light years (20 [[Parsec|megaparsec]]s) behind the other two galaxies.<ref>Using [[Hubble's law]]: <math>v = H_0 \, D</math>, where <math>v</math> is the recessional velocity, in km/s, ''H''<sub>0</sub> is the Hubble constant (about 68 (km/s)/Mpc), and <math>D</math> is the proper distance, in megaparsecs.</ref> Thus, the center galaxy is likely a background object. The NGC 5679 group was previously thought to be interacting gravitationally, however the newer Hubble image seems to confirm suspicions that the center galaxy is not interacting, as the galaxy arms are not distorted like typical [[interacting galaxy|interacting galaxies]].<ref name=aan>{{cite web|url=http://annesastronomynews.com/photo-gallery-ii/galaxies-clusters/arp-274/|access-date=15 January 2017|title=Anne's Astronomy News: Arp 274, a triplet of galaxies in Virgo|date=14 February 2013 }}</ref>

One [[supernova]] has been observed in NGC 5679: SN 1982D (type unknown, mag. 18) was discovered by Halton Arp and Jack W. Sulentic on 23 March 1982.<ref>{{cite journal | bibcode=1982IAUC.3681....1A| title=Supernova in NGC 5679A,B| last1=Arp| first1=H. C.| last2=Sulentic| first2=J. W.| journal=International Astronomical Union Circular| date=1982| issue=3681| page=1}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1982D | url=https://www.wis-tns.org/object/1982D | publisher = [[International_Astronomical_Union|IAU]] | access-date=4 December 2024}}</ref>

== References ==
{{reflist}}

==External links==
* {{commonscat inline}}

{{Virgo}}
{{Ngc60}}
{{Catalogs|Arp=274}}

{{DEFAULTSORT:NGC 5679 Group}}
[[Category:Arp objects|274]]
[[Category:Galaxy clusters]]
[[Category:NGC objects|5679]]
[[Category:Virgo (constellation)]]