imported>Hikaru Genji 来自 2025年3月21日 (五) 09:00

2025-03-21T09:00:13Z

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{{Galaxybox begin
| name = [[梅西爾天體|M]] 90
}}
{{Galaxybox image
| image = [[File:Messier_90_-_HST.png|250px]]
| caption = [[哈伯太空望遠鏡]]拍攝的M 90
}}
{{Galaxybox observe
| epoch = [[J2000]]
| constell = [[室女座]]<ref name="sinnott1988">
{{cite book
| editor=R. W. Sinnott
| title= The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer
| url=https://archive.org/details/ngc20000complete0000drey
| date=1988
| publisher=[[Sky Publishing Corporation]]/[[劍橋大學出版社|Cambridge University Press]]
| isbn=0-933346-51-4
}}</ref>
| ra = {{RA|12|36|49.8}}<ref name="ned">{{cite web
| title=NASA/IPAC Extragalactic Database
| work=Results for NGC 205
| url=http://nedwww.ipac.caltech.edu/
| accessdate=2006-02-01
| archive-date=2018-12-25
| archive-url=https://web.archive.org/web/20181225045153/http://ned.ipac.caltech.edu/
| dead-url=no
}}</ref>
| dec = {{DEC|+13|09|46}}<ref name="ned" />
| appdim_v = 9.5 × 4.4 [[角分|moa]]<ref name="ned" />
| appmag_v = 10.26<ref name="ned" />
}}
{{Galaxybox character
| g_type = SAB(rs)ab,<ref name="ned" /> [[低電離星系核|LINER]],<ref name="ned" /> Sy<ref name="ned" />
}}
{{Galaxybox astrometry
| h_radial_v = −235
| hrv_err = 4<ref name="ned" />
| z = -0.000784
| z_err = 0.000013<ref name="ned" />
| gal_v = −282
| gv_err = 4<ref name="ned" />
| g_dist = 58.7
| dist_err = 2.8
}}
{{Galaxybox catalog
| names = [[NGC天體表|NGC]] 4569,<ref name="ned" /> [[乌普萨拉总目录|UGC]] 7786,<ref name="ned" /> [[主要星系目录|PGC]] 42089,<ref name="ned" /> [[特殊星系圖集|Arp]] 76<ref name="ned" />
}}

{{Galaxybox end}}

'''M90'''（也稱為'''NGC 4569'''）是一個位於室女座，距離大約6000萬光年遠的[[螺旋星系]]{{Ref label|A|a|none}}，由[[查爾斯·梅西耶]]於1781年所發現<ref name="jones1991">
{{cite book
| author=K. G. Jones
| date=1991 | edition= 2nd
| title=Messier's Nebulae and Star Clusters
| publisher=[[Cambridge University Press]]
| isbn=0-521-37079-5
}}</ref>，坐落於以[[M87]]為中心的[[次集團]]附近。
M90的光譜表現為[[藍位移]]，與大部分星系相異，意謂著該星系正在接近地球。

== 附註 ==

<ol type="a">
<li>{{Note_label|A|a|none}}{{Harvnb|Tschöke|Bomans|Hensler|Junkes|2001}} uses a [[Hubble constant]] of 75 (km/s)/Mpc to estimate a distance of 16.8 Mpc to NGC 4569. Adjusting for the 2006 value of 70{{±|2.4|3.2}} (km/s)/Mpc we get a distance of 18.0{{±|0.9|0.6}} Mpc.</li>
</ol>

== 參考資料 ==
<div class="references-small"><references/></div>

{{星系小作品}}
{{梅西耶天體}}

[[Category:螺旋星系]]
[[Category:室女座星系團]]
[[Category:梅西耶天體|090]]
[[Category:室女座NGC天體|4569]]
[[Category:UGC天體|7786]]
[[Category:PGC天體|42089]]
[[Category:阿普天體|76]]

M90 - 版本历史

imported>Hikaru Genji 来自 2025年3月21日 (五) 09:00