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女宿一(宝瓶座ε)是位于宝瓶座的恒星,其视星等为3.77。

女宿一
Diagram showing star positions and boundaries of the Aquarius constellation and its surroundings
Cercle rouge 100%.svg

Location of ε Aquarii (circled)
觀測資料
曆元 J2000
星座 宝瓶座
星官
赤經 20h 47m 40.55260s[1]
赤緯 −09° 29′ 44.7877″[1]
視星等(V) 3.77[2]
特性
光谱分类A1 V[2]
U−B 色指数+0.029[3]
B−V 色指数–0.001[3]
变星类型Suspected[4]
天体测定
徑向速度 (Rv)–16[5] km/s
自行 (μ) 赤经:+33.98[1] mas/yr
赤纬:-34.77[1] mas/yr
视差 (π)15.70 ± 0.21[1] mas
距离208 ± 3 ly
(63.7 ± 0.9 pc)
绝对星等 (MV)−0.46[6]
詳細資料
表面重力 (log g)3.64[7]
溫度9,470[7] K
金属量 [Fe/H]+0.07[7] dex
自轉速度 (v sin i)70[2] km/s
年齡240[8] Myr
其他命名
Albali, 2 Aquarii, BD-10° 5506, FK5 781, HD 198001, HIP 102618, HR 7950, SAO 144810.[4]
參考資料庫
SIMBADdata

参考文献编辑

  1. ^ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, November 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752, doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 2.2 Levato, O. H., Rotational Velocities and Spectral Types of Some A-Type Stars, Publications of the Astronomical Society of the Pacific, August 1972, 84 (500): 584, Bibcode:1972PASP...84..584L, doi:10.1086/129336. 
  3. ^ 3.0 3.1 Cousins, A. W. J., Standardization of Broadband Photometry of Equatorial Standards, South African Astronomical Observatory Circulars, 1984, 8: 59, Bibcode:1984SAAOC...8...59C. 
  4. ^ 4.0 4.1 * eps Aqr. SIMBAD. 斯特拉斯堡天文資料中心. [2012-06-29]. 
  5. ^ Wielen, R.; 等, Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions (35), Astronomisches Rechen-Institut Heidelberg, 1999, Bibcode:1999VeARI..35....1W. 
  6. ^ Ammler-von Eiff, M.; Reiners, A., New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?, Astronomy & Astrophysics, June 2012, 542: A116, Bibcode:2012A&A...542A.116A, arXiv:1204.2459, doi:10.1051/0004-6361/201118724. 
  7. ^ 7.0 7.1 7.2 Hill, G. M., Compositional differences among the A-type stars. 2: Spectrum synthesis up to V sin i = 110 km/s, Astronomy and Astrophysics, February 1995, 294 (2): 536–546, Bibcode:1995A&A...294..536H. 
  8. ^ Su, K. Y. L.; 等, Debris Disk Evolution around A Stars, The Astrophysical Journal, December 2006, 653 (1): 675–689, Bibcode:2006ApJ...653..675S, arXiv:astro-ph/0608563, doi:10.1086/508649. 

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