垒壁阵七
 
Location of λ Aquarius (circled) | |
| 觀測資料 曆元 J2000 | |
|---|---|
| 星座 | 宝瓶座 |
| 星官 | |
| 赤經 | 22h 52m 36.87441s[1] |
| 赤緯 | −07° 34′ 46.5542″[1] |
| 視星等（V） | 3.722[2] |
| 特性 | |
| 光谱分类 | M2.5 IIIa Fe–1[3] |
| U−B 色指数 | +1.721[2] |
| B−V 色指数 | +1.641[2] |
| 变星类型 | Lb[4] |
| 天体测定 | |
| 徑向速度 (Rv) | −10.46 ± 0.53[5] km/s |
| 自行 (μ) | 赤经：+17.02[1] mas/yr 赤纬：+33.03[1] mas/yr |
| 视差 (π) | 8.47 ± 0.66[1] mas |
| 距离 | 390 ± 30 ly (118 ± 9 pc) |
| 绝对星等 (MV) | –1.5[6] |
| 詳細資料 | |
| 質量 | 3.6[7] M☉ |
| 溫度 | 3,835[7] K |
| 金属量 [Fe/H] | –2.25[6] dex |
| 其他命名 | |
| 參考資料庫 | |
| SIMBAD | data |
垒壁阵七(宝瓶座λ)是位于宝瓶座的恒星，其视星等为3.722。
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; 等, , Publ. Dept. Astron. Univ. Chile (Publicaciones Universidad de Chile, Department de Astronomy), 1966, 1: 1–17, Bibcode:1966PDAUC...1....1G.
- Eggleton, P. P.; Tokovinin, A. A., , Monthly Notices of the Royal Astronomical Society, September 2008, 389 (2): 869–879, Bibcode:2008MNRAS.389..869E, arXiv:0806.2878, doi:10.1111/j.1365-2966.2008.13596.x.
- Samus, N. N.; Durlevich, O. V.; 等. . VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 2009, 1. Bibcode:2009yCat....102025S.
- Famaey, B.; 等, , Astronomy and Astrophysics, May 2009, 498 (2): 627–640, Bibcode:2009A&A...498..627F, arXiv:0901.0934, doi:10.1051/0004-6361/200810698.
- Dupree, A. K.; Li, Timothy Q.; Smith, Graeme H., , The Astronomical Journal, October 2007, 134 (4): 1348–1359, Bibcode:2007AJ....134.1348D, arXiv:0709.1709, doi:10.1086/520925.
- Tsuji, Takashi. . Kupka, F.; Roxburgh, I.; Chan, K. (编). . Proceedings of the International Astronomical Union 2. May 2007: 307–310. Bibcode:2007IAUS..239..307T. arXiv:astro-ph/0610180. doi:10.1017/S1743921307000622.
- . SIMBAD. 斯特拉斯堡天文資料中心. [2012-07-01].
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