imported>勾陈一5744：修饰语句

2026-03-06T04:47:24Z

修饰语句

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{{Infobox galaxy|name=NGC 7381|constellation name=[[宝瓶座]]|epoch=J2000|ra={{RA|22|50|08|}} <ref name="ned"/>|dec={{DEC|-19|43|30.6|}} <ref name="ned"/>|z=0.015050 ± 2.70e-5 <ref name="ned"/>|h_radial_v=4512 ± 8 km/s<ref name="ned"/>|dist_pc=61.68 ± 4.33 Mpc <ref name="ned"/>|size=20.26 kpc <ref name="ned"/>|image=NGC 7381 SDSS2.jpg|caption=[[斯隆数字巡天]]拍摄的NGC 7381|appmag_b=14.97 <ref>{{Cite web |title=NGC 7381 - Spiral Galaxy in Aquarius {{!}} TheSkyLive.com |url=https://theskylive.com/sky/deepsky/ngc7381-object |website=theskylive.com |access-date=2025-03-16}}</ref>|sbrightness_specify=22.52 mag/arcsec^2 <ref>{{Cite web |title=NGC 7381 - Spiral Galaxy in Aquarius {{!}} TheSkyLive.com |url=https://theskylive.com/sky/deepsky/ngc7381-object |website=theskylive.com |access-date=2025-03-16}}</ref>}}

'''NGC 7381'''是位于[[寶瓶座|宝瓶座]]的[[螺旋星系]]<ref name="ned">{{Cite web |title=By Name {{!}} NASA/IPAC Extragalactic Database |url=https://ned.ipac.caltech.edu/byname?objname=NGC+7381&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1 |website=ned.ipac.caltech.edu |access-date=2025-03-16}}</ref>。1885年，美国天文学家[[法蘭斯·萊文沃思|法兰斯·莱文沃思]]发现该星系<ref>{{Cite web |title=NGC Objects: NGC 7350 - 7399 |url=https://cseligman.com/text/atlas/ngc73a.htm#7381 |website=cseligman.com |access-date=2025-03-16}}</ref>。

该星系相对于[[宇宙微波背景|宇宙微波背景辐射]]的径向速度为4182 ± 24km/s<ref name="ned" />，由[[哈勃–勒梅特定律|哈勃定律]]，该星系的距离为61.68 ± 4.33 Mpc。根据[[西德尼·范登贝赫]]的星系光度等级，NGC 7381为III-IV级<ref name="ned" />，代表其旋臂结构不明显，星系盘面亮度低。<ref>{{Cite web |title=Luminosity Classification |url=https://ned.ipac.caltech.edu/level5/CLASSIFICATION/lucl.html |website=ned.ipac.caltech.edu |access-date=2025-03-16}}</ref>

== 參考資料 ==
{{Reflist|30em}}

== 外部連結 ==
* [http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+7381 SIMBAD Astronomical Database]
* [http://cdsportal.u-strasbg.fr/?target=NGC%207381 CDS Portal]

[[Category:1885年发现的天体]]
[[Category:宝瓶座]]
[[Category:MCG天体]]
[[Category:PGC天體]]

NGC 7381 - 版本历史

imported>勾陈一5744：​修饰语句

imported>勾陈一5744：修饰语句