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NGC 2403 - 版本历史
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<p><span class="autocomment">参考文献：</span> <a href="https://en.wikipedia.org/wiki/%E6%9C%BA%E5%99%A8%E4%BA%BA/%E7%94%B3%E8%AF%B7/Zestbot/19" class="extiw" title="wikipedia:机器人/申请/Zestbot/19">Bot</a>：標準化Wikitext</p>
<p><b>新页面</b></p><div>{{ Galaxy |<br />
| image = [[File:NGC 2403HST.jpg|250px]]<br />
| caption = <br />
| name = [[New General Catalogue|NGC 2403]]<br />
| epoch = [[J2000]]<br />
| type = SAB(s)cd<ref name="ned">{{cite web<br />
| title=NASA/IPAC Extragalactic Database<br />
| work=Results for NGC 2403<br />
| url=http://nedwww.ipac.caltech.edu/<br />
| accessdate=2006-11-21<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 />
| ra = {{RA|07|36|51.4}}<ref name="ned" /><br />
| dec = {{DEC|+65|36|09}}<ref name="ned" /><br />
| dist_ly = 8000000 [[光年|ly]] (2500000 [[秒差距|pc]])<ref name="NSOG">{{cite book <br />
|last= Kepple<br />
|first= George Robert<br />
|author2= Glen W. Sanner<br />
|title= The Night Sky Observer's Guide, Volume 1<br />
|publisher= Willmann-Bell, Inc.<br />
|year= 1998<br />
|id= ISBN 0-943396-58-1<br />
|pages=73<br />
}}</ref><br />
| z = 131 ± 3 [[公里|km]]／s<ref name="ned" /><br />
| appmag_v = 8.9<ref name="ned" /><br />
| size_v = 21′.9 × 12′.3<ref name="ned" /><br />
| constellation name = [[鹿豹座]]<br />
| notes = <br />
| names = [[乌普萨拉总目录|UGC]] 3918,<ref name="ned" /> [[PGC]] 21396<ref name="ned" /><br />
}}<br />
<br />
'''NGC 2403'''是一個位在[[鹿豹座]]的[[中間棒旋星系]]，距離地球8百萬[[光年]]<br />
，有一個H II型的星系核。.<ref name="hoetal1997">{{citation<br />
| last1 = Ho<br />
| first1 = Luis C.<br />
| last2 = Filippenko<br />
| first2 = Alexei V.<br />
| last3 = Sargent<br />
| first3 = Wallace L. W.<br />
| title = A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies<br />
| date = October 1997<br />
| periodical = Astrophysical Journal Supplement<br />
| volume = 112<br />
| pages = 315-390<br />
| URL = http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1997ApJS..112..315H<br />
| accessdate = 2008-03-08<br />
| archive-date = 2016-01-10<br />
| archive-url = https://web.archive.org/web/20160110120936/http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1997ApJS..112..315H<br />
| dead-url = no<br />
}}</ref><br />
NGC 2403是首先再1788年由[[威廉·赫歇爾]]發現，屬於[[M81星系團]]的成員之一，<ref name="NSOG" />現在可以輕鬆的用10 × 50 [[雙筒望遠鏡]]看到它<ref name="NSOG" /> <br />
== 超新星 ==<br />
到目前為止，人們在NGC 2403裡發現了兩個[[超新星]]，分別是 [[SN 1954J]]和[[SN 2004dj]]。<br />
<br />
== 参考文献 ==<br />
<div class="references-small"><br />
<references /><br />
</div><br />
{{星系小作品}}<br />
{{科德韦尔天体}}<br />
<br />
[[Category:鹿豹座NGC天體]]<br />
[[Category:M81星系团]]<br />
[[Category:科德韦尔天体]]<br />
[[Category:1788年發現的天體]]</div>
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