顿顽一
| 觀測資料 曆元 J2000.0 | |
|---|---|
| 星座 | 豺狼座 |
| 星官 | |
| 赤經 | 15h 21m 48.36967s[1] |
| 赤緯 | −36° 15′ 40.9525″[1] |
| 視星等（V） | 3.58[2] |
| 特性 | |
| 光谱分类 | K5 III[3] |
| U−B 色指数 | +1.85[2] |
| B−V 色指数 | +1.53[2] |
| 天体测定 | |
| 徑向速度 (Rv) | −29.4±0.7[4] km/s |
| 自行 (μ) | 赤经：−92.33[1] mas/yr 赤纬：−85.67[1] mas/yr |
| 视差 (π) | 11.86 ± 0.16[1] mas |
| 距离 | 275 ± 4 ly (84 ± 1 pc) |
| 绝对星等 (MV) | −1.55[5] |
| 詳細資料 | |
| 半徑 | 52[6] R☉ |
| 溫度 | 3,894±59[7] K |
| 其他命名 | |
| 參考資料庫 | |
| SIMBAD | data |
参考文献
- van Leeuwen, F., , Astronomy and Astrophysics, 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752, doi:10.1051/0004-6361:20078357.
- Mermilliod, J.-C., , Catalogue of Eggen's UBV data (SIMBAD), 1986, Bibcode:1986EgUBV........0M.
- Houk, Nancy, 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, 1979, Bibcode:1982MSS...C03....0H.
- de Bruijne, J. H. J.; Eilers, A.-C., , Astronomy & Astrophysics, October 2012, 546: 14, Bibcode:2012A&A...546A..61D, arXiv:1208.3048, doi:10.1051/0004-6361/201219219, A61.
- Ginestet, N.; 等, [The absolute magnitudes of the G to M type MK standards from the Hipparcos parallaxes], Astronomy and Astrophysics Supplement, February 2000, 142: 13−24, Bibcode:2000A&AS..142...13G, doi:10.1051/aas:2000135 （法语）.
- Lang, Kenneth R., , Astronomy and astrophysics library 1 3rd, Birkhäuser, 2006, ISBN 3-540-29692-1. The radius (R*) is given by:
- Strassmeier, K. G.; Schordan, P., , Astronomische Nachrichten, 2000, 321 (5): 277−305, Bibcode:2000AN....321..277S, doi:10.1002/1521-3994(200012)321:5/6<277::AID-ASNA277>3.0.CO;2-H.
- . SIMBAD. 斯特拉斯堡天文資料中心. [2017-03-10].
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