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WISE 1541-2250 - 版本历史
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<p><b>新页面</b></p><div>{{Starbox begin<br />
| name=WISEPA J154151.66-225025.2 }}<br />
{{Starbox observe<br />
| epoch=[[儒略日|MJD]] 55424.68<ref name="Kirkpatrick2011v1"/> <br />
| equinox=[[J2000]]<ref name="Kirkpatrick2011v1"/> <br />
| constell=[[天秤座]]<br />
| ra={{RA|15|41|51.57}}<ref name="Kirkpatrick2011v1">{{cite arXiv<br />
|last=Kirkpatrick |first=J. Davy<br />
|coauthors=Cushing; Gelino; Griffith; Skrutskie; Marsh; Wright; Mainzer; Eisenhardt; McLean; Thompson; Bauer; Benford; Bridge; Lake; Petty; Stanford; Tsai; Bailey; Beichman; Bochanski; Burgasser; Capak; Cruz; Hinz; Kartaltepe; Knox; Manohar; Masters; Morales-Calderónn; Prato; Rodigas; Salvato; Schurr; Scoville; Simcoe; Stapelfeldt; Stern; Stock; Vacca<br />
|title=The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)<br />
|year=2011<br />
|eprint=1108.4677<br />
|version=v1<br />
|class=astro-ph.SR<br />
|accessdate=2011-08-23}}</ref><br />
| dec={{DEC|-22|50|25.03}}<ref name="Kirkpatrick2011v1"/> <br />
| appmag_v=21.16 ± 0.36 (filter J)<ref name="Cushing2011v1">{{cite arXiv<br />
|last=Cushing |first=Michael C.<br />
|coauthors=Kirkpatrick; Gelino; Griffith; Skrutskie; Mainzer; Marsh; Beichman; Burgasser; Prato; Simcoe; Marley; Saumon; Freedman; Eisenhardt; Wright<br />
|title=THE DISCOVERY OF Y DWARFS USING DATA FROM THE WIDE-FIELD INFRARED SURVEY EXPLORER (WISE)<br />
|year=2011<br />
|eprint=1108.4678<br />
|version=v1<br />
|class=astro-ph.SR<br />
|accessdate=2011-08-23}}</ref>}}<br />
{{Starbox character<br />
| class=Y0<ref name="Kirkpatrick2011v1"/> <br />
| b-v=<br />
| u-b=<br />
| variable=}}<br />
{{Starbox astrometry<br />
| prop_mo_ra=111<ref name="Kirkpatrick2011v1"/><br />
| prop_mo_dec=-1584<ref name="Kirkpatrick2011v1"/><br />
| parallax=351<br />
| p_error=108<br />
| parallax_footnote=<ref name="Kirkpatrick2011v1"/> }}<br />
{{Starbox detail<br />
| mass=12 (8—12) [[木星]]质量<ref name="Cushing2011v1"/><br />
| radius=1.01 (1.01—1.07) [[木星]]半径<ref name="Cushing2011v1"/><br />
| gravity=4.50 (4.25−4.5)<ref name="Cushing2011v1"/><br />
| temperature=350<ref name="Cushing2011v1"/> }}<br />
{{Starbox catalog<br />
| names= WISEPA J154151.66-225025.2<ref name="Kirkpatrick2011v1"/>, WISEP J1541-2250<ref name="Cushing2011v1"/>, WISE J1541-2250<ref name="Kirkpatrick2011v1"/>}}<br />
{{Starbox end}}<br />
'''WISE 1541-2250'''，全称为'''WISEPA J154151.66-225025.2'''，是[[廣域紅外線巡天探測衛星]]於2011年在[[天秤座]]發現的一顆[[棕矮星]]。它距离太陽約9光年，是已知的距地球最近的棕矮星，也是距地球第七近的恒星系统，略遠於最近的[[南門二]]兩倍的距離。对WISE 1541-2250的光谱光度测量显示它距离地球8.2[[秒差距]]（26.7[[光年]]），而以地球围绕太阳公转1.2年为基线的[[视差|三角视差]]法测量出其视差为0.351 ± 0.108[[角秒]]，因此可计算出它的距离为2.8 +1.3/-0.6秒差距（9.3 +4.1/-2.2光年），这个距离大约落在用光谱光度测量出的距离的三个[[标准差]]水平<ref name="Kirkpatrick2011v1"/>。<br />
<br />
WISE 1541-2250和[[WISE 0410+1502]]，[[WISE 1405+5534]]，[[WISE 1738+2732]]，[[WISE 1828+2650]]以及[[WISE 2056+1459]]一起被公布，这六颗恒星是人类发现的第一批的[[恒星分类|Y型]]棕矮星，Y型是最低温的恒星光谱类型，WISE 1541-2250的表面温度只有350[[热力学温标|K]]。<br />
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== 相關條目 ==<br />
*[[恆星距離列表]]<br />
<br />
== 參考文獻 ==<br />
{{reflist}}<br />
<br />
== 外部链接 ==<br />
*{{cite news|last=Choi|first=Charles Q.|title=Y dwarf star? Because they're cool, that's Y!|publisher=[[Space.com]]|date=August 26, 2011|url=http://www.msnbc.msn.com/id/44287824/ns/technology_and_science-space/|accessdate=August 31, 2011|archive-date=2011-08-31|archive-url=https://web.archive.org/web/20110831022141/http://www.msnbc.msn.com/id/44287824/ns/technology_and_science-space/}}<br />
<br />
{{天秤座恒星}}<br />
<br />
[[Category:棕矮星]]<br />
[[Category:Y型恒星]]<br />
[[Category:2011年发现的恒星]]<br />
[[Category:天秤座]]<br />
[[Category:WISE天体]]</div>
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