尾宿增二
| 觀測資料 曆元 J2000 | |
|---|---|
| 星座 | 天蝎座 |
| 星官 | |
| 赤經 | 16h 52m 20.14532s[1] |
| 赤緯 | −38° 01′ 03.1258″[1] |
| 視星等（V） | +3.56[2] |
| 特性 | |
| 光谱分类 | B2 IV[3] |
| U−B 色指数 | −0.878[2] |
| B−V 色指数 | −0.219[2] |
| 天体测定 | |
| 徑向速度 (Rv) | +1.4[4] km/s |
| 自行 (μ) | 赤经：−11.09[1] mas/yr 赤纬：−23.32[1] mas/yr |
| 视差 (π) | 6.88 ± 0.12[1] mas |
| 距离 | 474 ± 8 ly (145 ± 3 pc) |
| 绝对星等 (MV) | −2.25[5] |
| 詳細資料 | |
| 質量 | 8.7±0.2[6] M☉ |
| 半徑 | 7.0[7] R☉ |
| 亮度 | 2,385[8] L☉ |
| 溫度 | 23,113[7] K |
| 自轉速度 (v sin i) | 58[9] km/s |
| 年齡 | 18.5±3.2[6] 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.
- Gutierrez-Moreno, Adelina; Moreno, Hugo, , Astrophysical Journal Supplement, June 1968, 15: 459, Bibcode:1968ApJS...15..459G, doi:10.1086/190168.
- Hiltner, W. A.; 等, , The Astrophysical Journal, July 1969, 157: 313, Bibcode:1969ApJ...157..313H, doi:10.1086/150069.
- Evans, D. S., Batten, Alan Henry; Heard, John Frederick , 编, , Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 (University of Toronto: International Astronomical Union), June 20–24, 1966, Bibcode:1967IAUS...30...57E.
- Anderson, E.; Francis, Ch., , Astronomy Letters, 2012, 38 (5): 331, Bibcode:2012AstL...38..331A, arXiv:1108.4971, doi:10.1134/S1063773712050015.
- Tetzlaff, N.; 等, , Monthly Notices of the Royal Astronomical Society, 2011, 410: 190–200, Bibcode:2011MNRAS.410..190T, arXiv:1007.4883, doi:10.1111/j.1365-2966.2010.17434.x.
- Underhill, A. B.; 等, , Monthly Notices of the Royal Astronomical Society, November 1979, 189: 601–605, Bibcode:1979MNRAS.189..601U, doi:10.1093/mnras/189.3.601.
- McDonald, I.; 等, , Monthly Notices of the Royal Astronomical Society, 2012, 427 (1): 343–57, Bibcode:2012MNRAS.427..343M, arXiv:1208.2037, doi:10.1111/j.1365-2966.2012.21873.x.
- Uesugi, Akira; Fukuda, Ichiro, , Contributions from the Institute of Astrophysics and Kwasan Observatory (University of Kyoto), 1970, Bibcode:1970crvs.book.....U.
- , SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2016-09-20].
外部链接
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