https://arolstar52-zhtest.hf.space/index.php?action=history&feed=atom&title=NGC_2841
NGC 2841 - 版本历史
2026-07-18T17:47:58Z
本wiki上该页面的版本历史
MediaWiki 1.43.9
https://arolstar52-zhtest.hf.space/index.php?title=NGC_2841&diff=701148&oldid=prev
imported>InternetArchiveBot：Add 1 book for verifiability (20251017sim)) #IABot (v2.0.9.5) (GreenC bot
2025-10-18T02:53:57Z
<p>Add 1 book for verifiability (20251017sim)) #IABot (v2.0.9.5) (<a href="/index.php?title=User:GreenC_bot&action=edit&redlink=1" class="new" title="User:GreenC bot（页面不存在）">GreenC bot</a></p>
<p><b>新页面</b></p><div>{{Infobox Galaxy<br />
| name = [[星云和星团新总表|NGC]] 2841<br />
| image = [[File:NGC 2841.jpg|260px]]<br />
| caption = [[哈伯太空望遠鏡]]拍摄的NGC 2841<br />
| epoch = [[J2000]]<br />
| ra = {{RA|9|22|02.6}}<ref name="ned">{{cite web<br />
| title=NASA/IPAC Extragalactic Database<br />
| work=Results for NGC 2841<br />
| url=http://nedwww.ipac.caltech.edu/<br />
| accessdate=2006-10-04<br />
| archive-date=2011-05-14<br />
| archive-url=https://web.archive.org/web/20110514100451/http://nedwww.ipac.caltech.edu/<br />
| dead-url=no<br />
}}</ref><br />
| dec = {{DEC|+50|58|35}}<ref name="ned" /><br />
| constellation name = [[大熊座]]<br />
| dist_ly =<br />
| z = 638 ± 3 km/[[second|s]]<ref name="ned" /><br />
| type = SA(r)b<ref name="ned" /><br />
| appmag_v = 10.1<ref name="ned" /><br />
| size_v = 8′.1 × 3′.5<ref name="ned" /><br />
| notes =<br />
| names =UGC 4966, PGC 26512<ref name="ned" /><br />
}}<br />
{{Sky|9|22|02.6|+|50|58|35|100000000}}<br />
'''NGC 2841''' 是位于[[大熊座]]的一个[[螺旋星系]]。最初认为它距离[[太阳系]]大约3000万[[光年]]远，2001年[[天文学家]]通过[[哈勃太空望远镜]]对该星系的[[造父变星]]进行研究确定它的实际距离为14.1[[秒差距|百万秒差距]]（4600万光年）<ref>{{cite journal<br />
| author = Macri, L. M.; Stetson, P. B.; Bothun, G. D.; Freedman, W. L.; Garnavich, P. M.; Jha, S.; Madore, B. F.; Richmond, M. W.<br />
| title = The Discovery of Cepheids and a New Distance to NGC 2841 Using the Hubble Space Telescope<br />
| url = https://archive.org/details/sim_astrophysical-journal_2001-09-20_559_1/page/242<br />
| journal = [[Astrophysical Journal]]<br />
| volume = 559<br />
| issue = 1<br />
| pages = 243–259<br />
| publisher = [[University of Chicago Press]]<br />
| issn = 0004-637X<br />
| bibcode = 2001ApJ...559..243M<br />
| accessdate = 2009-01-18<br />
| doi = 10.1086/322395 |date=September 2001}} </ref>。从结构上看，NGC 2841的最大特征是含有大量年轻的蓝色恒星，而[[电离氢区]]很少<ref>{{cite book<br />
|first1 = Leonid<br />
|last1 = Marochnik<br />
|first2 = Anatoly<br />
|last2 = Suchkov<br />
|title = Milky Way Galaxy<br />
|edition = 1st<br />
|date = 1995-11-01<br />
|publisher = [[Routledge]]<br />
|isbn = 2881249310 <br />
|page = 267 }} </ref>。<br />
<br />
NGC 2841包含一个[[低电离核发射线区]]（Low-ionization nuclear emission-line region，LINER），这是弱离子原子发射[[谱线]]区域的特征<ref name="hoetal1997">{{cite journal<br />
| author=L. C. Ho, A. V. Filippenko, W. L. W. Sargent<br />
| title=A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies<br />
| journal=Astrophysical Journal Supplement<br />
| year=1997<br />
| volume=112<br />
| pages=315–390<br />
| url=http://adsabs.harvard.edu/abs/1997ApJS..112..315H<br />
| doi=10.1086/313041<br />
| access-date=2010-08-19<br />
| archive-date=2007-03-22<br />
| archive-url=https://web.archive.org/web/20070322101947/http://adsabs.harvard.edu/abs/1997ApJS..112..315H<br />
| dead-url=no<br />
}}</ref>。<br />
<br />
{| border="0"<br />
|-<br />
| [[File:NGC2841HunterWilson.jpg|left|thumb|500px|NGC 2841的原始照片]]<br />
|}<br />
<br />
== 参见 ==<br />
* [[NGC天体列表 (2000-2999)]]<br />
<br />
==参考资料==<br />
{{reflist}}<br />
<br />
{{WikiSky}}<br />
{{Catalogs|NGC=2841}}<br />
{{commons|NGC 2841}}<br />
<br />
[[Category:螺旋星系]]<br />
[[Category:大熊座]]<br />
[[Category:NGC天体|2841]]<br />
[[Category:1788年發現的天體]]</div>
imported>InternetArchiveBot