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NGC 7250 - 版本历史
2026-07-19T05:35:38Z
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2020-09-26T08:38:16Z
<p>补救4个来源，并将0个来源标记为失效。) #IABot (v2.0.7</p>
<p><b>新页面</b></p><div>{{Sky|22|18|17.776|+|40|33|44.66}}<br />
{{Infobox galaxy<br />
| name = NGC 7250<br />
| image = [[File:A matter of distance NGC 7250.jpg|280px]]<br />
| caption = [[哈伯太空望遠鏡]]拍攝的NGC 7250<ref name="esa/hubble">{{cite web|title=A matter of distance|url=https://www.spacetelescope.org/images/potw1717a/|website=www.spacetelescope.org|accessdate=24 April 2017|archive-date=2019-05-06|archive-url=https://web.archive.org/web/20190506051719/https://www.spacetelescope.org/images/potw1717a/|dead-url=no}}</ref><br />
| epoch = [[J2000]]<br />
| constellation name = [[蝎虎座]]<ref name="esa/hubble"/><br />
| ra = {{RA|22|18|17.776}}<ref name=2MASS>{{cite journal|title=The Two Micron All Sky Survey (2MASS)|url=http://adsabs.harvard.edu/abs/2006AJ....131.1163S|author1=Skrutskie, M.|journal=The Astronomical Journal|volume=131|issue=2|pages=1163–1183|year=2006|doi=10.1086/498708|bibcode=2006AJ....131.1163S|access-date=2017-05-16|archive-date=2019-09-13|archive-url=https://web.archive.org/web/20190913005054/http://adsabs.harvard.edu/abs/2006AJ....131.1163S|dead-url=no}}</ref><br />
| dec = {{DEC|+40|33|44.66}}<ref name=2MASS/><br />
| z = 0.0039<ref name="simbad">{{cite simbad|title=NGC 7250|accessdate=24 April 2017}}</ref><br />
| h_radial_v = 1168 km/s<ref name="simbad"/><br />
| gal_v = <br />
| dist_ly = 49.99 ± 14.37 [[光年|Mly]]<br>（15.328 ± 4.407 [[秒差距|Mpc]]）<ref name=ned>{{cite web|url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+7250&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 7250|publisher=[[美国国家航空航天局|National Aeronautics and Space Administration]] / [[紅外處理和分析中心|Infrared Processing and Analysis Center]]|accessdate=24 April 2017|archive-date=2019-10-18|archive-url=https://web.archive.org/web/20191018193638/http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+7250&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|dead-url=no}}</ref><br />
| group_cluster = <br />
| type = [[星系分類|Irr]]<br />
| mass = {{Val|4.7e8}}<!-- given in logarithms --><ref name=Pan/><br />
| mass_light_ratio = <!-- In solar units --><br />
| size = <!-- In light years --><br />
| stars = <br />
| appmag_v = 12.58<ref name="simbad"/><br />
| appmag_b = 13.22<ref name="simbad"/><br />
| absmag_v = <br />
| size_v = <br />
| notes = <br />
| names = [[主要星系目录|PGC]]&nbsp;68535, [[乌普萨拉总目录|UGC]]&nbsp;11980, [[星系形态目录|MCG]]+07-45-024, [[馬克仁星系|Mrk]]&nbsp;907, {{nowrap|[[弗里茨·兹威基|Z]] 530-22}}<br />
| references = <br />
}}<br />
<br />
'''NGC 7250'''是一個位於[[蝎虎座]]的[[不規則星系]]。該星系是明亮恆星大量且快速形成的藍色星系，其恆星形成率超過[[銀河系]]一個[[数量级]]<ref name=Pan>{{cite journal|doi=10.1093/mnras/stv1605|bibcode=2015MNRAS.452.4307P|arxiv=1504.02396|title=500 days of SN 2013dy: Spectra and photometry from the ultraviolet to the infrared|journal=Monthly Notices of the Royal Astronomical Society|volume=452|issue=4|pages=4307|year=2015|last1=Pan|first1=Y.-C.|last2=Foley|first2=R. J.|last3=Kromer|first3=M.|last4=Fox|first4=O. D.|last5=Zheng|first5=W.|last6=Challis|first6=P.|last7=Clubb|first7=K. I.|last8=Filippenko|first8=A. V.|last9=Folatelli|first9=G.|last10=Graham|first10=M. L.|last11=Hillebrandt|first11=W.|last12=Kirshner|first12=R. P.|last13=Lee|first13=W. H.|last14=Pakmor|first14=R.|last15=Patat|first15=F.|last16=Phillips|first16=M. M.|last17=Pignata|first17=G.|last18=Röpke|first18=F.|last19=Seitenzahl|first19=I.|last20=Silverman|first20=J. M.|last21=Simon|first21=J. D.|last22=Sternberg|first22=A.|last23=Stritzinger|first23=M. D.|last24=Taubenberger|first24=S.|last25=Vinko|first25=J.|last26=Wheeler|first26=J. C.}}</ref>。<br />
<br />
2013年，天文學家在NGC 7250發現一顆[[Ia超新星]]，即SN 2013dy 。該超新星在爆炸後約2.4小時被偵測到，在當時是爆炸後最短時間內被偵測到的超新星<ref>{{cite journal|doi=10.1088/2041-8205/778/1/L15|arxiv=1310.5188|bibcode=2013ApJ...778L..15Z|title=THE VERY YOUNG TYPE Ia SUPERNOVA 2013dy: DISCOVERY, AND STRONG CARBON ABSORPTION IN EARLY-TIME SPECTRA|journal=The Astrophysical Journal|volume=778|pages=L15|year=2013|last1=Zheng|first1=Weikang|last2=Silverman|first2=Jeffrey M.|last3=Filippenko|first3=Alexei V.|last4=Kasen|first4=Daniel|last5=Nugent|first5=Peter E.|last6=Graham|first6=Melissa|last7=Wang|first7=Xiaofeng|last8=Valenti|first8=Stefano|last9=Ciabattari|first9=Fabrizio|last10=Kelly|first10=Patrick L.|last11=Fox|first11=Ori D.|last12=Shivvers|first12=Isaac|last13=Clubb|first13=Kelsey I.|last14=Cenko|first14=S. Bradley|last15=Balam|first15=Dave|last16=Howell|first16=D. Andrew|last17=Hsiao|first17=Eric|last18=Li|first18=Weidong|last19=Howie Marion|first19=G.|last20=Sand|first20=David|last21=Vinko|first21=Jozsef|last22=Wheeler|first22=J. Craig|last23=Zhang|first23=Jujia}}</ref>。<br />
<br />
NGC 7250在天球上的前景星為TYC 3203-450-1，目前對該恆星幾乎沒有相關研究。而該恆星與地球間的距離較NGC 7250近一百萬倍<ref>{{Cite news|url=https://www.nasa.gov/image-feature/goddard/2017/hubbles-bright-shining-lizard-star|title=Hubble's Bright Shining Lizard Star|last=Hille|first=Karl|date=2017-04-28|work=NASA|access-date=2017-04-30|language=en|archive-date=2018-06-26|archive-url=https://web.archive.org/web/20180626174150/https://www.nasa.gov/image-feature/goddard/2017/hubbles-bright-shining-lizard-star/|dead-url=no}}</ref>。<br />
<br />
==參考資料==<br />
{{reflist}}<br />
<br />
{{Commonscat|NGC 7250}}<br />
{{Ngc75}}<br />
<br />
[[Category:不規則星系]]<br />
[[Category:蝎虎座NGC天體|7250]]<br />
[[Category:UGC天體|11980]]<br />
[[Category:PGC天體|068535]]<br />
{{galaxy-stub}}</div>
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