女宿一

**女宿一**
	Location of ε Aquarii (circled)
觀測資料; 曆元 J2000
星座	寶瓶座
星官
赤經	20h 47m 40.55260s
赤緯	−09° 29′ 44.7877″
視星等（V）	3.77
特性
光譜分類	A1 V
U−B 色指數	+0.029
B−V 色指數	–0.001
變星類型	Suspected
天體測定
徑向速度 (Rv)	–16 km/s
自行 (μ)	赤經：+33.98 mas/yr ; 赤緯：-34.77 mas/yr
視差 (π)	15.70 ± 0.21 mas
距離	208 ± 3 ly ; (63.7 ± 0.9 pc)
絕對星等 (MV)	−0.46
詳細資料
表面重力 (log g)	3.64
溫度	9,470 K
金屬量 [Fe/H]	+0.07 dex
自轉速度 (v sin i)	70 km/s
年齡	240 Myr
其他命名
	Albali, 2 Aquarii, BD-10° 5506, FK5 781, HD 198001, HIP 102618, HR 7950, SAO 144810.
參考資料庫
SIMBAD	資料

女宿一（寶瓶座ε；Albali；HD 198001）是位於寶瓶座的恆星，其視星等為3.77。

Quick Facts 觀測資料曆元 J2000, 特性 ...

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參考文獻

[1]
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]
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]
Cousins, A. W. J., Standardization of Broadband Photometry of Equatorial Standards, South African Astronomical Observatory Circulars, 1984, 8: 59, Bibcode:1984SAAOC...8...59C.
[4]
* eps Aqr. SIMBAD. 斯特拉斯堡天文資料中心. [2012-06-29].
[5]
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.
[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]
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.; et al, 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.

外部連結

Image Epsilon Aquarii（頁面存檔備份，存於網際網路檔案館）

[aaa474_2_653-1] [1]
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.

[pasp84_500_584-2] [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.

[saooc8_59-3] [3]
Cousins, A. W. J., Standardization of Broadband Photometry of Equatorial Standards, South African Astronomical Observatory Circulars, 1984, 8: 59, Bibcode:1984SAAOC...8...59C.

[SIMBAD-4] [4]
* eps Aqr. SIMBAD. 斯特拉斯堡天文資料中心. [2012-06-29].

[scfs-5] [5]
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.

[vonEiff2012-6] [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.

[aaa294_2_536-7] [7]
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.

[apj653_1_675-8] [8]
Su, K. Y. L.; et al, 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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觀測資料曆元 J2000
Location of ε Aquarii (circled)
星座	寶瓶座
星官
赤經	20^h 47^m 40.55260^s^[1]
赤緯	−09° 29′ 44.7877″^[1]
視星等（V）	3.77^[2]
特性
光譜分類	A1 V^[2]
U−B 色指數	+0.029^[3]
B−V 色指數	–0.001^[3]
變星類型	Suspected^[4]
天體測定

徑向速度 (R_v)	–16^[5] km/s
自行 (μ)	赤經：+33.98^[1] mas/yr 赤緯：-34.77^[1] mas/yr
視差 (π)	15.70 ± 0.21^[1] mas
距離	208 ± 3 ly (63.7 ± 0.9 pc)
絕對星等 (M_V)	−0.46^[6]

詳細資料

表面重力 (log g)	3.64^[7]
溫度	9,470^[7] K
金屬量 [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
SIMBAD	資料