女宿一
 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 | |
| 參考資料庫 | |
| SIMBAD | data |
参考文献
- van Leeuwen, F., , Astronomy and Astrophysics, November 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752, doi:10.1051/0004-6361:20078357.
- Levato, O. H., , Publications of the Astronomical Society of the Pacific, August 1972, 84 (500): 584, Bibcode:1972PASP...84..584L, doi:10.1086/129336.
- Cousins, A. W. J., , South African Astronomical Observatory Circulars, 1984, 8: 59, Bibcode:1984SAAOC...8...59C.
- . SIMBAD. 斯特拉斯堡天文資料中心. [2012-06-29].
- Wielen, R.; 等, (35), Astronomisches Rechen-Institut Heidelberg, 1999, Bibcode:1999VeARI..35....1W.
- Ammler-von Eiff, M.; Reiners, A., , Astronomy & Astrophysics, June 2012, 542: A116, Bibcode:2012A&A...542A.116A, arXiv:1204.2459, doi:10.1051/0004-6361/201118724.
- Hill, G. M., , Astronomy and Astrophysics, February 1995, 294 (2): 536–546, Bibcode:1995A&A...294..536H.
- Su, K. Y. L.; 等, , The Astrophysical Journal, December 2006, 653 (1): 675–689, Bibcode:2006ApJ...653..675S, arXiv:astro-ph/0608563, doi:10.1086/508649.
外部链接
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