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{{Infobox Galaxy
| name = [[NGC目錄|NGC]] 2859
| image = NGC_2859_HST_9788_14_R814asinhG814logB658n.png
| caption = [[哈伯太空望遠鏡]]拍攝的NGC 2859。
| epoch = [[J2000]]
| ra = {{RA|09|24|18.549}}<ref name="ApJ131_1163"/>
| dec = {{DEC|+34|30|48.16}}<ref name="ApJ131_1163"/>
| type = (R)SB(r)0+<ref name="Buta2007"/>
| dist_ly = {{nowrap|82.8 [[光年|Mly]] (25.4 [[秒差距|Mpc]])}}<ref name="MNRAS415_3_2158"/>
| z = 1687 ± 8 km/[[秒|s]]<ref name="ned" />
| appmag_v = 11.8<ref name="ned" />
| size_v = {{nowrap|4′.3 × 3′.8}}<ref name="ned" />
| constellation name = [[小獅座]]
| notes = 雙棒
| names = [[Uppsala General Catalogue|UGC]] 5001, [[Principal Galaxies Catalogue|PGC]] 26649<ref name="ned" />
}}
[[Image:NGC 2859 SDSS.jpg|thumb|250px|NGC 2859]]
'''NGC 2859'''位於[[小獅座]]，距離8,300萬光年<ref name="MNRAS415_3_2158"/>，是一個核心有棒狀結構的[[透鏡狀星系|透鏡星系]]。在[[星系型態分類|型態分類]]上是(R)SB(r)0+<ref name="Buta2007"/>。依據[[佛科留斯系統|佛科留斯分類法]]，此處的（R）表示這個星系的外圍有一個突出的、分離的環，S表示它是透鏡星系，B表示它有一個瓣狀的棒形結構，這意味著它的末端變亮或變寬，並且還有一個微弱的與主棒幾乎呈直角的次棒，（r）表示這些特徵被一個看似瀰漫的微弱內環包圍著，0+表示有一個明確的物理結構，是缺少可見旋臂的類型。另外，在觀測上還看到在它的東側有一系列藍色的結。

在它中心有一個[[超大質量黑洞]]，估計質量是1.05億[[太陽質量]]。在分類上暫時被歸類為過渡的T2:型<ref name="MNRAS415_3_2158"/>。它沒有[[活躍星系核|活動]]的跡象<ref name="MNRAS431_3_2397"/>。

== 參考資料 ==
{{reflist|refs=
<ref name="ned">{{cite web
|work = NASA/IPAC Extragalactic Database
|title = Results for NGC 2859
|author = Jet Propulsion Laboratory, California Institute of Technology
|publisher = National Aeronautics and Space Administration
|url = http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+2859&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
|accessdate = 2006-11-21
|archive-date = 2018-10-11
|archive-url = https://web.archive.org/web/20181011214912/http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+2859&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
|dead-url = no
}}</ref>

<ref name="Buta2007">{{Citation
|first1 = Ronald J.
|last1 = Buta
|first2 = Harold G.
|last2 = Corwin
|first3 = Stephen C.
|last3 = Odewahn
|title = Atlas of Galaxies
|publisher = [[Cambridge University Press]]
|page = 118
|year = 2007
|isbn = 978-0521820486
|url = https://books.google.com/books?id=g-P7dCbB5MEC&pg=PA116
|postscript = .
|accessdate = 2020-10-02
|archive-date = 2020-01-25
|archive-url = https://web.archive.org/web/20200125005640/https://books.google.com/books?id=g-P7dCbB5MEC&pg=PA116
|dead-url = no
}}</ref>

<ref name="MNRAS415_3_2158">{{Citation
| last1 = Richings
| first1 = A. J.
| last2 = Uttley
| first2 = P.
| last3 = Körding
| first3 = E.
| display-authors = 1
| title = The connection between radio loudness and central surface brightness profiles in optically selected low-luminosity active galaxies
| journal = [[Monthly Notices of the Royal Astronomical Society]]
| volume = 415
| issue = 3
| pages = 2158–2172
|date=August 2011
| doi = 10.1111/j.1365-2966.2011.18845.x
| bibcode = 2011MNRAS.415.2158R
| postscript = .
|arxiv = 1104.1053 }}</ref>

<ref name="MNRAS431_3_2397">{{Citation
| last1 = de Lorenzo-Cáceres
| first1 = A.
| last2 = Falcón-Barroso
| first2 = J.
| last3 = Vazdekis
| first3 = A.
| display-authors = 1
| title = Distinct stellar populations in the inner bars of double-barred galaxies
| journal = Monthly Notices of the Royal Astronomical Society
| volume = 431
| issue = 3
| pages = 2397–2418
|date=May 2013
| arxiv = 1302.5701
| doi = 10.1093/mnras/stt334
| bibcode = 2013MNRAS.431.2397D
| postscript = .
}}</ref>

<ref name="ApJ131_1163">{{Citation
| first1 = M. F. | last1 = Skrutskie | first2 = R. M. | last2 = Cutri
| first3 = R. | last3 = Stiening | first4 = M. D. | last4 = Weinberg
| first5 = S. | last5 = Schneider | first6 = J. M. | last6 = Carpenter
| first7 = C. | last7 = Beichman | first8 = R. | last8 = Capps
| first9 = T. | last9 = Chester | first10 = J. | last10 = Elias
| first11 = J. | last11 = Huchra | first12 = J. | last12 = Liebert
| first13 = C. | last13 = Lonsdale | first14 = D. G. | last14 = Monet
| first15 = S. | last15 = Price | first16 = P. | last16 = Seitzer
| first17 = T. | last17 = Jarrett | first18 = J. D. | last18 = Kirkpatrick
| first19 = J. E. | last19 = Gizis | first20 = E. | last20 = Howard
| first21 = T. | last21 = Evans | first22 = J. | last22 = Fowler
| first23 = L. | last23 = Fullmer | first24 = R. | last24 = Hurt
| first25 = R. | last25 = Light | first26 = E. L. | last26 = Kopan
| first27 = K. A. | last27 = Marsh | first28 = H. L. | last28 = McCallon
| first29 = R. | last29 = Tam | first30 = S. | last30 = Van Dyk
| first31 = S. | last31 = Wheelock | display-authors = 1
| title = The Two Micron All Sky Survey (2MASS)
| journal = The Astronomical Journal
| volume = 131
| issue = 2
| pages = 1163–1183
|date=February 2006
| doi = 10.1086/498708
| bibcode = 2006AJ....131.1163S
| postscript = .
| doi-access = free }}</ref>
}}

== 外部連結 ==
*{{commonscat-inline}}
*{{WikiSky}}

{{Ngc30}}
{{小獅座}}
{{Sky|09|24|18.549|+|34|30|48.16|83000000}}

[[Category:透鏡狀星系]]
[[Category:棒透鏡星系]]
[[Category:環星系]]
[[Category:小獅座]]
[[Category:NGC天體|2859]]
[[Category:UGC天體|05001]]
[[Category:PGC天體|26649]]

NGC 2859 - 版本历史

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imported>Tarih：+image #WPWPTR #WPWP