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维基百科

羽林軍廿四

關於恆星系統中其他相同拜耳命名法恆星,請參見寶瓶座τ。

寶瓶座71,即寶瓶座τ2Tau2 Aquarii、τ2 Aqr、τ2 Aquarii),是一顆寶瓶座的恆星,視星等+4.0.[2]。該恆星是一顆橙色的巨星[7]光譜類型 K5 III[3]。它的角直徑在經過周邊昏暗修正後5.12 ± 0.05 mas[8]。它的距離經由視差量測大約是318光年或97秒差距[1],半徑是太陽的53倍[5]

τ2 Aquarii
Location of τ1 Aquarii (circled)
觀測資料
曆元 J2000
星座 寶瓶座
星官
赤經 22h 49m 35.50157s[1]
赤緯 –13° 35′ 33.4767″[1]
視星等(V) +4.042[2]
特性
光谱分类K5 III[3]
U−B 色指数+1.948[2]
B−V 色指数+1.566[2]
天体测定
徑向速度 (Rv)+1.0[4] km/s
自行 (μ) 赤经:–13.71[1] mas/yr
赤纬:–39.03[1] mas/yr
视差 (π)10.27 ± 0.29[1] mas
距离318 ± 9 ly
(97 ± 3 pc)
詳細資料
半徑53[5] R
其他命名
Tau Aquarii, 71 Aquarii, BD–14 6354, FK5 861, HD 216032, HIP 112716, HR 8679, NSV 14329, SAO 165321.[6]

參考資料

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, November 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 2.2 2.3 Gutierrez-Moreno, Adelina; et al, A System of photometric standards 1, Publicaciones Universidad de Chile, Department de Astronomy: 1–17, 1966, Bibcode:1966PDAUC...1....1G. 
  3. ^ 3.0 3.1 Houk, Nancy, Michigan catalogue of two-dimensional spectral types for the HD stars 4, Ann Arbor: Dept. of Astronomy, University of Michigan, 1978, Bibcode:1988mcts.book.....H. 
  4. ^ Wielen, R.; et al, Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions (35), Astronomisches Rechen-Institut Heidelberg, 1999, Bibcode:1999VeARI..35....1W. 
  5. ^ 5.0 5.1 Lang, Kenneth R., Astrophysical formulae, Astronomy and astrophysics library 1 3, Birkhäuser, 2006, ISBN 3-540-29692-1 . The radius (R*) is given by:
     
  6. ^ tau Aqr -- Star in double system, SIMBAD (Centre de Données astronomiques de Strasbourg), [2012-02-08] 
  7. ^ The Colour of Stars, Australia Telescope, Outreach and Education (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004 [2012-01-16], (原始内容存档于2012-03-10) 
  8. ^ Richichi; Percheron, I.; Khristoforova, M., CHARM2: An updated Catalog of High Angular Resolution Measurements, Astronomy and Astrophysics, February 2005, 431: 773–777, Bibcode:2005A&A...431..773R, doi:10.1051/0004-6361:20042039 

外部連結

  • Image τ2 Aquarii

羽林軍廿四, 關於恆星系統中其他相同拜耳命名法恆星, 請參見寶瓶座τ, 寶瓶座71, 即寶瓶座τ2, tau2, aquarii, aquarii, 是一顆寶瓶座的恆星, 視星等, 該恆星是一顆橙色的巨星, 光譜類型, 它的角直徑在經過周邊昏暗修正後5, 它的距離經由視差量測大約是318光年或97秒差距, 半徑是太陽的53倍, aquariilocation, aquarii, circled, 觀測資料曆元, j2000星座, 寶瓶座星官赤經, 50157s, 赤緯, 4767, 視星等, 特性光谱分类k5, 色. 關於恆星系統中其他相同拜耳命名法恆星 請參見寶瓶座t 寶瓶座71 即寶瓶座t2 Tau2 Aquarii t2 Aqr t2 Aquarii 是一顆寶瓶座的恆星 視星等 4 0 2 該恆星是一顆橙色的巨星 7 光譜類型 K5 III 3 它的角直徑在經過周邊昏暗修正後5 12 0 05 mas 8 它的距離經由視差量測大約是318光年或97秒差距 1 半徑是太陽的53倍 5 t2 AquariiLocation of t1 Aquarii circled 觀測資料曆元 J2000星座 寶瓶座星官赤經 22h 49m 35 50157s 1 赤緯 13 35 33 4767 1 視星等 V 4 042 2 特性光谱分类K5 III 3 U B 色指数 1 948 2 B V 色指数 1 566 2 天体测定徑向速度 Rv 1 0 4 km s自行 m 赤经 13 71 1 mas yr 赤纬 39 03 1 mas yr视差 p 10 27 0 29 1 mas距离318 9 ly 97 3 pc 詳細資料半徑53 5 R 其他命名Tau Aquarii 71 Aquarii BD 14 6354 FK5 861 HD 216032 HIP 112716 HR 8679 NSV 14329 SAO 165321 6 參考資料 编辑 1 0 1 1 1 2 1 3 1 4 1 5 van Leeuwen F Validation of the new Hipparcos reduction Astronomy and Astrophysics November 2007 474 2 653 664 Bibcode 2007A amp A 474 653V doi 10 1051 0004 6361 20078357 2 0 2 1 2 2 2 3 Gutierrez Moreno Adelina et al A System of photometric standards 1 Publicaciones Universidad de Chile Department de Astronomy 1 17 1966 Bibcode 1966PDAUC 1 1G 3 0 3 1 Houk Nancy Michigan catalogue of two dimensional spectral types for the HD stars 4 Ann Arbor Dept of Astronomy University of Michigan 1978 Bibcode 1988mcts book H Wielen R et al Sixth Catalogue of Fundamental Stars FK6 Part I Basic fundamental stars with direct solutions 35 Astronomisches Rechen Institut Heidelberg 1999 Bibcode 1999VeARI 35 1W 5 0 5 1 Lang Kenneth R Astrophysical formulae Astronomy and astrophysics library 1 3 Birkhauser 2006 ISBN 3 540 29692 1 The radius R is given by 2 R 97 5 12 10 3 AU 0 0046491 AU R 107 R displaystyle begin aligned 2 cdot R amp frac 97 cdot 5 12 cdot 10 3 text AU 0 0046491 text AU R bigodot amp approx 107 cdot R bigodot end aligned tau Aqr Star in double system SIMBAD Centre de Donnees astronomiques de Strasbourg 2012 02 08 The Colour of Stars Australia Telescope Outreach and Education Commonwealth Scientific and Industrial Research Organisation December 21 2004 2012 01 16 原始内容存档于2012 03 10 Richichi Percheron I Khristoforova M CHARM2 An updated Catalog of High Angular Resolution Measurements Astronomy and Astrophysics February 2005 431 773 777 Bibcode 2005A amp A 431 773R doi 10 1051 0004 6361 20042039 外部連結 编辑Image t2 Aquarii 取自 https zh wikipedia org w index php title 羽林軍廿四 amp oldid 56824454, 维基百科,wiki,书籍,书籍,图书馆,

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