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天鸽座μ:修订间差异

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{{Starbox begin
{{Starbox begin
| name= (天鴿座Mu)}}
| name=屎天鴿座μ)
}}
{{Starbox image
| image=
{{Location mark
|image=Columba constellation map.svg|alt=|float=center|width=280
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=μ Col
|x=516|y=374
}}
|caption=屎星的位置(圓圈)
}}
{{Starbox observe
{{Starbox observe
| epoch=J2000
| epoch=J2000
| ra=05<sup>h</sup> 45<sup>m</sup> 59.9<sup>s</sup>
| ra={{RA|05|45|59.89496}}<ref name=hipparcos/>
| dec={{DEC|&minus;32|18|23.1630}}<ref name=hipparcos/>
| dec=-32° 18&prime; 23&Prime;
| appmag_v=5.18<ref name=ducati>{{cite journal|bibcode=2002yCat.2237....0D|title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system|journal=CDS/ADC Collection of Electronic Catalogues|volume=2237|author1=Ducati|first1=J. R.|year=2002}}</ref>
| appmag_v=5.15
| constell=[[天鴿座]]
| constell=[[天鴿座]]
| 星官 = 屎([[参宿]])}}
| 星官 = 屎([[参宿]])
}}
{{Starbox character
{{Starbox character
| class=O9.5 V<ref name=gosss>{{cite journal|bibcode=2014ApJS..211...10S|title=The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright Southern Stars|journal=The Astrophysical Journal Supplement|volume=211|pages=10|author1=Sota|first1=A.|last2=Maíz Apellániz|first2=J.|last3=Morrell|first3=N. I.|last4=Barbá|first4=R. H.|last5=Walborn|first5=N. R.|last6=Gamen|first6=R. C.|last7=Arias|first7=J. I.|last8=Alfaro|first8=E. J.|year=2014|doi=10.1088/0067-0049/211/1/10|arxiv = 1312.6222 }}</ref>
| class=O9.5 V
| b-v=-0.28
| b-v=&minus;0.28<ref name=ducati/>
| u-b=-1.06
| u-b=&minus;1.06<ref name=ducati/>
| variable=Suspected<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}</ref>
| variable=Suspected }}
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v=+109.00 ± 1.8<ref>{{cite journal|bibcode=2006AstL...32..759G|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|journal=Astronomy Letters|volume=32|issue=11|pages=759|author1=Gontcharov|first1=G. A.|year=2006|doi=10.1134/S1063773706110065}}</ref>
| radial_v=+109.2
| prop_mo_ra=3.01
| prop_mo_ra=2.98<ref name=hipparcos/>
| prop_mo_dec=-22.62
| prop_mo_dec=&minus;22.24<ref name=hipparcos/>
| parallax=2.52
| parallax=2.52
| p_error=0.55
| p_error=0.55
| parallax_footnote=<ref name=hipparcos>{{cite journal|bibcode=2007A&A...474..653V|title=Validation of the new Hipparcos reduction|journal=Astronomy and Astrophysics|volume=474|issue=2|pages=653|author1=Van Leeuwen|first1=F.|year=2007|doi=10.1051/0004-6361:20078357|arxiv = 0708.1752 }}</ref>
| dist_ly=1300
| dist_pc=400
| dist_ly=
| dist_pc=
| absmag_v=-2.84 }}
| absmag_v=&minus;3.64<ref name=martins/>
}}
{{Starbox detail
{{Starbox detail
| source=<ref name=martins>{{cite journal|bibcode=2005A&A...441..735M|arxiv=astro-ph/0507278|title=On stars with weak winds: The Galactic case|journal=Astronomy and Astrophysics|volume=441|issue=2|pages=735|author1=Martins|first1=F.|last2=Schaerer|first2=D.|last3=Hillier|first3=D. J.|last4=Meynadier|first4=F.|last5=Heydari-Malayeri|first5=M.|last6=Walborn|first6=N. R.|year=2005|doi=10.1051/0004-6361:20052927}}</ref>
| mass=12-15
| radius=4.5
| mass=16
| radius=6.58
| luminosity=23,300
| temperature=33,700
| luminosity=45,700
| temperature=33,000
| metal=?
| gravity=4.0
| rotation=1.5 days (~153 km/s.)
| metal=
| age=2.7 &times; 10<sup>6</sup> }}
| rotation=
| rotational_velocity=111
| age_myr=2 - 4
}}
{{Starbox catalog
{{Starbox catalog
| names=[[Harvard Revised catalogue|HR]] 1996, [[Cordoba Durchmusterung|CD]] -32°2538, [[Henry Draper catalogue|HD]] 38666, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 196149, [[Hipparcos catalogue|HIP]] 27204. }}
| names=[[Harvard Revised catalogue|HR]]&nbsp;1996, [[Cordoba Durchmusterung|CD]]&minus;32°2538, [[Henry Draper catalogue|HD]]&nbsp;38666, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;196149, [[Hipparcos catalogue|HIP]]&nbsp;27204
}}
{{Starbox reference
|Simbad=mu+Col
}}
{{Starbox end}}
{{Starbox end}}


'''屎星'''位於[[天鴿座]],在[[拜耳命名法]]中是'''天鴿座μ星'''。在中國[[星官]]中屬[[參宿]],代表星官[[廁一|廁]]裡的[[糞便]]。
'''屎星'''位於[[天鴿座]]的一顆恆星,在[[拜耳命名法]]中是'''天鴿座μ星'''('''Mu Columbae''',μ Col),是能以肉眼看見的少數O型星之一{{clarify|reason=how many and says who?|date=December 2016}}。已知這恆星距離[[太陽系]]約1,300[[光年]],但可能有數百年的誤差。在中國[[二十八宿]]中屬[[參宿]],代表[[星官]][[廁一|廁]]裡的[[糞便]]。


這是相對而言自轉較快的一顆恆星,大約每1.5天自轉一周。相較於[[太陽]],直徑是屎星的22%,自轉一周卻要25.4天。但這種自轉速度是此類恆中較典型的。
屎星的光譜型屬O型,為一藍[[矮星]],[[視星等]]為5.15等,是少數能以肉眼觀看的O型[[恒星]],距離[[太陽系]]達1,300[[光年]]。位置在[[赤經]]05h 45m 59.9s,[[赤緯]]-32°18′23″。[[絕對星等]]為-2.84等。屎星[[自轉週期]]僅1.5天,與同型恒星的轉速相當。


基於[[自行]]和[[徑向速度]]的測量,天文學家知道,這顆星和[[御夫座AE]]正以超過200Km/S的速度在相互遠離。它們共同的起源點交會在[[獵戶四邊形星團]]中的[[伐三]]。最可能的情況是在250萬年前,有兩對[[聯星]]的交互作用(碰撞),造成了這些速逃星從徑向上不同的點拋射而逃逸<ref name=gualandris>{{cite journal|bibcode=2004MNRAS.350..615G|title=N-body simulations of stars escaping from the Orion nebula|journal=Monthly Notices of the Royal Astronomical Society|volume=350|issue=2|pages=615|author1=Gualandris|first1=Alessia|last2=Portegies Zwart|first2=Simon|last3=Eggleton|first3=Peter P.|year=2004|doi=10.1111/j.1365-2966.2004.07673.x|arxiv = astro-ph/0401451 }}</ref>。
==自行==
屎星是一顆著名的[[恆星運動學#速逃星|速逃星]],它的[[自行運動]]速度非常之快,它與[[御夫座AE]]以每秒100公里的速度互相逃離。逃離的起點是[[獵戶座大星雲]]中間的[[獵戶四邊形星團]]之一的[[獵戶座ι]]星,互相逃離的原因相信是250萬年前兩個[[雙星]]系統碰上而導致。


==參看==
== 語源 ==
在[[中國天文學]],天鴿座μ稱為屎,[[漢語拼音]]:Shǐ,意思是”排泄物”或”糞便",因為這顆星是單獨一顆成為一個星官,位置在[[廁]]的下方,屬於[[參宿]] <ref>{{zh icon}} [http://aeea.nmns.edu.tw/2006/0607/ap060715.html AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 15 日]</ref><ref>[http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Columba_Noae*.html Richard Hinckley Allen: Star Names — Their Lore and Meaning: Columbae]</ref>。
*[[廁一]]
*[[天鴿座]]


這顆星與[[大犬座ζ]]、[[大犬座λ]]、[[天鴿座γ]]、[[天鴿座δ]]、[[天鴿座θ]]、[[天鴿座κ]]、[[天鴿座λ]] 、[[天鴿座ξ]]是猿('''Al Ḳurūd''' 、'''ألقرد''' - ''al-qird'')<ref>{{cite journal
==參考文獻==
| last=Davis Jr. | first=G. A.
* A. Blaauw & W.W. Morgan, 1954, "The Space Motions of AE Aurigae and mu Columbae with Respect to the Orion Nebula", ''Astrophysical Journal'', v.119, p.625.
| title=The Pronunciations, Derivations, and Meanings of a Selected List of Star Names
* R. Hoogerwerf, J.H.J. de Bruijne, P.T. de Zeeuw, 2000, "The origin of runaway stars", ''Astrophysical Journal'', v.544, issue 2, pp. L133-L136.
| journal=Popular Astronomy
| volume=18 | page=14 |date=October 1944
| bibcode=1944PA.....52....8D }}</ref>。


==外部連結==
== 參考資料 ==
{{reflist}}
*[http://aeea.nmns.edu.tw/2006/0607/ap060715.html AEEA 天文教育資訊網]


== 進階讀物 ==
{{astro-stub}}
* {{cite journal|bibcode=1954ApJ...119..625B|title=The Space Motions of AE Aurigae and μ Columbae with Respect to the Orion Nebula|journal=Astrophysical Journal|volume=119|pages=625|author1=Blaauw|first1=A.|last2=Morgan|first2=W. W.|year=1954|doi=10.1086/145866}}
* {{cite journal|bibcode=2001A&A...365...49H|arxiv=astro-ph/0010057|title=On the origin of the O and B-type stars with high velocities. II. Runaway stars and pulsars ejected from the nearby young stellar groups|journal=Astronomy and Astrophysics|volume=365|issue=2|pages=49|author1=Hoogerwerf|first1=R.|last2=De Bruijne|first2=J. H. J.|last3=De Zeeuw|first3=P. T.|year=2001|doi=10.1051/0004-6361:20000014}}


{{Stars of Columba}}

[[Category:天鴿座]]
[[Category:O-型主序星]]
[[Category:O-型主序星]]
[[Category:天鸽座]]
[[Category:奔逃星]]
[[分类:速逃星]]
[[Category:疑似變星]]
[[Category:拜耳天體|天鴿座μ]]
[[Category:HR天體|1996]]
[[Category:HD星表天體|038666]]
[[Category:Durchmusterung objects]]
[[Category:伊巴谷天體|027204]]

2017年5月9日 (二) 16:22的版本

屎(天鴿座μ)
屎星的位置(圓圈)
觀測資料
曆元 J2000
星座 天鴿座
星官 屎(参宿)
赤經 05h 45m 59.89496s[1]
赤緯 −32° 18′ 23.1630″[1]
視星等(V) 5.18[2]
特性
光谱分类O9.5 V[3]
U−B 色指数−1.06[2]
B−V 色指数−0.28[2]
变星类型Suspected[4]
天体测定
徑向速度 (Rv)+109.00 ± 1.8[5] km/s
自行 (μ) 赤经:2.98[1] mas/yr
赤纬:−22.24[1] mas/yr
视差 (π)2.52 ± 0.55[1] mas
距离approx. 1,300 ly
(approx. 400 pc)
绝对星等 (MV)−3.64[6]
詳細資料 [6]
質量16 M
半徑6.58 R
表面重力 (log g)4.0
亮度45,700 L
溫度33,000 K
自轉速度 (v sin i)111 km/s
年齡2 - 4 Myr
其他命名
HR 1996, CD−32°2538, HD 38666, SAO 196149, HIP 27204
參考資料庫
SIMBAD资料

屎星位於天鴿座的一顆恆星,在拜耳命名法中是天鴿座μ星Mu Columbae,μ Col),是能以肉眼看見的少數O型星之一[需要解释]。已知這恆星距離太陽系約1,300光年,但可能有數百年的誤差。在中國的二十八宿中屬參宿,代表星官裡的糞便

這是相對而言自轉較快的一顆恆星,大約每1.5天自轉一周。相較於太陽,直徑是屎星的22%,自轉一周卻要25.4天。但這種自轉速度是此類恆中較典型的。

基於自行徑向速度的測量,天文學家知道,這顆星和御夫座AE正以超過200Km/S的速度在相互遠離。它們共同的起源點交會在獵戶四邊形星團中的伐三。最可能的情況是在250萬年前,有兩對聯星的交互作用(碰撞),造成了這些速逃星從徑向上不同的點拋射而逃逸[7]

語源

中國天文學,天鴿座μ稱為屎,漢語拼音:Shǐ,意思是”排泄物”或”糞便",因為這顆星是單獨一顆成為一個星官,位置在的下方,屬於參宿 [8][9]

這顆星與大犬座ζ大犬座λ天鴿座γ天鴿座δ天鴿座θ天鴿座κ天鴿座λ天鴿座ξ是猿(Al Ḳurūdألقرد - al-qird[10]

參考資料

  1. ^ 1.0 1.1 1.2 1.3 1.4 Van Leeuwen, F. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. 2007, 474 (2): 653. Bibcode:2007A&A...474..653V. arXiv:0708.1752可免费查阅. doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 2.2 Ducati, J. R. VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system. CDS/ADC Collection of Electronic Catalogues. 2002, 2237. Bibcode:2002yCat.2237....0D. 
  3. ^ Sota, A.; Maíz Apellániz, J.; Morrell, N. I.; Barbá, R. H.; Walborn, N. R.; Gamen, R. C.; Arias, J. I.; Alfaro, E. J. The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright Southern Stars. The Astrophysical Journal Supplement. 2014, 211: 10. Bibcode:2014ApJS..211...10S. arXiv:1312.6222可免费查阅. doi:10.1088/0067-0049/211/1/10. 
  4. ^ Samus, N. N.; Durlevich, O. V.; et al. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013). VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 2009, 1. Bibcode:2009yCat....102025S. 
  5. ^ Gontcharov, G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system. Astronomy Letters. 2006, 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  6. ^ 6.0 6.1 Martins, F.; Schaerer, D.; Hillier, D. J.; Meynadier, F.; Heydari-Malayeri, M.; Walborn, N. R. On stars with weak winds: The Galactic case. Astronomy and Astrophysics. 2005, 441 (2): 735. Bibcode:2005A&A...441..735M. arXiv:astro-ph/0507278可免费查阅. doi:10.1051/0004-6361:20052927. 
  7. ^ Gualandris, Alessia; Portegies Zwart, Simon; Eggleton, Peter P. N-body simulations of stars escaping from the Orion nebula. Monthly Notices of the Royal Astronomical Society. 2004, 350 (2): 615. Bibcode:2004MNRAS.350..615G. arXiv:astro-ph/0401451可免费查阅. doi:10.1111/j.1365-2966.2004.07673.x. 
  8. ^ (中文) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 15 日
  9. ^ Richard Hinckley Allen: Star Names — Their Lore and Meaning: Columbae
  10. ^ Davis Jr., G. A. The Pronunciations, Derivations, and Meanings of a Selected List of Star Names. Popular Astronomy. October 1944, 18: 14. Bibcode:1944PA.....52....8D. 

進階讀物