天市左垣二
| 觀測資料 曆元 J2000 | |
|---|---|
| 星座 | 武仙座 |
| 星官 | |
| 赤經 | 17h 30m 44.3099s[1] |
| 赤緯 | +26° 06′ 38.323″[1] |
| 視星等（V） | 4.402[2] |
| 特性 | |
| 光谱分类 | K4III[2] |
| U−B 色指数 | +1.68[3] |
| B−V 色指数 | +1.44[3] |
| 天体测定 | |
| 徑向速度 (Rv) | −26.51[4] km/s |
| 自行 (μ) | 赤经：+18.39[1] mas/yr 赤纬：+16.78[1] mas/yr |
| 视差 (π) | 8.88 ± 0.64[1] mas |
| 距离 | 370 ± 30 ly (113 ± 8 pc) |
| 绝对星等 (MV) | −0.86[5] |
| 詳細資料 | |
| 表面重力 (log g) | 1.89[6] |
| 亮度 | 465[5] L☉ |
| 溫度 | 4,070[6] K |
| 金属量 [Fe/H] | −0.04[6] dex |
| 自轉速度 (v sin i) | 8[7] km/s |
| 其他命名 | |
| 參考資料庫 | |
| SIMBAD | 资料 |
天市左垣二（武仙座λ，英語：Lambda Herculis）也称赵,，又名BD+26 3034，HD 158899、SAO 85163、HR 6526，是武仙座的一颗恒星[2]，视星等为4.41，位于銀經49.48，銀緯28.44，其B1900.0坐标为赤經17h 26m 41.7s，赤緯+26° 28.44′ 9″。
参考文献
[编辑]- ^ 1.0 1.1 1.2 1.3 1.4 Perryman, M. A. C.; et al, The Hipparcos Catalogue, Astronomy & Astrophysics, 1997, 323: L49–L52, Bibcode:1997A&A...323L..49P
- ^ 2.0 2.1 2.2 2.3 lam Her -- Variable Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2010-07-03]. （原始内容存档于2020-11-30）.
- ^ 3.0 3.1 Johnson, H. L.; Iriarte, B.; Mitchell, R. I.; Wisniewskj, W. Z. UBVRIJKL photometry of the bright stars. Communications of the Lunar and Planetary Laboratory. 1966, 4 (99): 99. Bibcode:1966CoLPL...4...99J.
- ^ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters. Astronomy and Astrophysics. January 2005, 430: 165–186. Bibcode:2005A&A...430..165F. arXiv:astro-ph/0409579
. doi:10.1051/0004-6361:20041272.
- ^ 5.0 5.1 Anderson, E.; Francis, Ch., XHIP: An extended hipparcos compilation, Astronomy Letters, 2012, 38 (5): 331, Bibcode:2012AstL...38..331A, arXiv:1108.4971 , doi:10.1134/S1063773712050015.
- ^ 6.0 6.1 6.2 McWilliam, Andrew. High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances. Astrophysical Journal Supplement Series. December 1990, 74: 1075–1128. Bibcode:1990ApJS...74.1075M. doi:10.1086/191527.
- ^ Bernacca, P. L.; Perinotto, M. A catalogue of stellar rotational velocities. Contributi Osservatorio Astronomico di Padova in Asiago. 1970, 239 (1). Bibcode:1970CoAsi.239....1B.
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