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{{Infobox Galaxy
| name = NGC 3718
| image = NGC 3718 with NGC 3729.jpg
| image_size = 300px
|caption = NGC 3718與[[NGC 3729]]
| credit=
| epoch = [[J2000.0]]
| ra = {{RA|11|32|34.940}}<ref name=2MASS>{{cite journal |doi=10.1086/498708 |last1=Skrutskie |first1=Michael F. |last2=Cutri |first2=Roc M. |last3=Stiening |first3=Rae |last4=Weinberg |first4=Martin D. |last5=Schneider |first5=Stephen E. |last6=Carpenter |first6=John M. |last7=Beichman |first7=Charles A. |last8=Capps |first8=Richard W. |last9=Chester |first9=Thomas |last10=Elias |first10=Jonathan H. |last11=Huchra |first11=John P. |last12=Liebert |first12=James W. |last13=Lonsdale |first13=Carol J. |last14=Monet |first14=David G. |last15=Price |first15=Stephan |last16=Seitzer |first16=Patrick |last17=Jarrett |first17=Thomas H. |last18=Kirkpatrick |first18=J. Davy |last19=Gizis |first19=John E. |last20=Howard |first20=Elizabeth V. |last21=Evans |first21=Tracey E. |last22=Fowler |first22=John W. |last23=Fullmer |first23=Linda |last24=Hurt |first24=Robert L. |last25=Light |first25=Robert M. |last26=Kopan |first26=Eugene L. |last27=Marsh |first27=Kenneth A. |last28=McCallon |first28=Howard L. |last29=Tam |first29=Robert |last30=Van Dyk |first30=Schuyler D. |last31=Wheelock |first31=Sherry L. |title=The Two Micron All Sky Survey (2MASS) |url=https://archive.org/details/sim_astronomical-journal_2006-02_131_2/page/1162 |journal=The Astronomical Journal |date=1 February 2006 |volume=131 |issue=2 |pages=1163–1183 |bibcode=2006AJ....131.1163S |s2cid=18913331 |issn=0004-6256 |doi-access=free }}</ref>
| dec = {{DEC|+53|04|04.18}}<ref name=2MASS/>
| dist_ly = {{cvt|14.667|±|2.618|Mpc|Mly|lk=on|order=flip}}<ref name=ned>{{cite web|url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+3718&extend=no&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=NED results for object NGC 3718|publisher=[[National Aeronautics and Space Administration]] / [[Infrared Processing and Analysis Center]]|access-date=8 December 2017}}</ref>
| z = 0.003306<ref name=SIMBAD/>
| appmag_v = 10.61<ref name=SIMBAD/>
| size_v = 2.940{{prime}} × 2.352{{prime}}<ref name=2MASS/>
| constellation name = [[大熊座]]
| type = SB(s)a pec<ref name=ned/>
| notes =
| names = [[Atlas of Peculiar Galaxies|Arp]] 214, [[Uppsala General Catalogue|UGC]] 6524, [[Morphological Catalogue of Galaxies|MCG]]+09-19-114, [[Principal Galaxies Catalogue|PGC]] 35616<ref name=SIMBAD>{{cite simbad|title=NGC 3718|access-date=8 December 2017}}</ref>
}}

'''NGC 3718'''，也稱為'''阿普214'''（Arp 214），是一個位於[[大熊座]]的[[星系]]，距離[[地球]]約5200萬[[光年]]。NGC 3718附近有一個星系[[NGC 3729]]，是一個奇特的[[棒旋星系]]<ref>{{Cite APOD|date=31 August 2006|title=Extra Galaxies}}</ref><ref name=SIMBAD/><ref>{{cite web|url=http://www.noao.edu/outreach/aop/observers/n3718.html|title=Best of AOP: NGC 3718|work=noao.edu|access-date=2015-01-26|archive-date=2015-05-24|archive-url=https://web.archive.org/web/20150524070733/http://www.noao.edu/outreach/aop/observers/n3718.html|url-status=dead}}</ref>。NGC 3718要不是一個透鏡狀星系，就是一個[[螺旋星系]]<ref>{{cite web|url=http://www.kopernik.org/images/archive/n3718.htm|title=NGC 3718, Spiral Galaxy|work=kopernik.org|access-date=2025-05-20|archive-date=2019-09-04|archive-url=https://web.archive.org/web/20190904163832/http://www.kopernik.org/images/archive/n3718.htm|dead-url=no}}</ref>。

NGC 3718呈現出與[[NGC 6872]]類似的扭曲S形，可能是與距離地球150,000光年的另一個螺旋星系NGC 3729發生引力交互作用的結果。希克森緻密群（The Hickson Compact Group）56位於NGC 3718的一個螺旋臂的南側。希克森緻密群56的距離是NGC 3718或 NGC 3729的8倍<ref>{{Cite web|url=http://apod.nasa.gov/apod/ap130803.html|title=APOD: 2013 August 3 - Twisting with NGC 3718|access-date=2025-05-20|archive-date=2015-07-04|archive-url=https://web.archive.org/web/20150704045412/http://apod.nasa.gov/apod/ap130803.html|dead-url=no}}</ref>。

NGC 3718是[[大熊座星系團]]<ref>{{Cite journal|last1=Tully|first1=R. Brent|last2=Verheijen|first2=Marc A. W.|last3=Pierce|first3=Michael J.|last4=Huang|first4=Jia-Sheng|last5=Wainscoat|first5=Richard J.|date=December 1996|title=The Ursa Major Cluster of Galaxies.I.Cluster Definition and Photometric Data|journal=The Astronomical Journal|volume=112|pages=2471|doi=10.1086/118196|issn=0004-6256|arxiv=astro-ph/9608124|bibcode=1996AJ....112.2471T|s2cid=7875515}}</ref>。

==參考資料==
{{reflist}}

{{Catalogs|NGC=3718}}
{{Ngc40}}

[[Category:大熊座]]
[[Category:NGC天體|3718]]

NGC 3718 - 版本历史

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