格利泽257
| 观测资料 历元 | |
|---|---|
| 星座 | 船尾座 |
| 星官 | |
| 赤经 | 6h 57m 44.966s |
| 赤纬 | -44° 17′ 29.026″ |
| 视星等（V） | 11.5+11.3 |
| 特性 | |
| 光谱分类 | M3.5V+M3D |
| 天体测定 | |
| 视差 (π) | 124.57 ± 0.27 mas |
| 距离 | 26.18 ± 0.06 ly (8.03 ± 0.02 pc) |
| 绝对星等 (MV) | 12+11.8 |
| 详细资料 | |
| Gliese 257 A | |
| 质量 | 0.25 M☉ |
| 半径 | 0.32 R☉ |
| Gliese 257 B | |
| 质量 | 0.24 M☉ |
| 半径 | 0.55 R☉ |
| 其他命名 | |
| 参考数据库 | |
| SIMBAD | 资料 |
参考
- ^ MASON B.D.; HARTKOPF W.I.; MILES K.N.; SUBASAVAGE J.P.; RAGHAVAN D.; HENRY T.J. Speckle interferometry of red dwarf stars.. 天文期刊. 2018, 155 (5): 14. Bibcode:2018AJ....155..215M. S2CID 119267352. arXiv:1804.07845
. doi:10.3847/1538-3881/aab9b8.
- ^ MALKOV O.Yu.; TAMAZIAN V.S.; DOCOBO J.A.; CHULKOV D.A. Dynamical masses of a selected sample of orbital binaries.. 天文与天体物理学报. 2012, 546: 5. Bibcode:2012A&A...546A..69M. S2CID 122594428. doi:10.1051/0004-6361/201219774.
- ^ Reylé, C.; Jardine, K.; Fouqué, P.; Caballero, J. A.; Smart, R. L.; Sozzetti, A. The 10 parsec sample in the Gaia era.. 天文与天体物理学报. 2022, 650: 14. Bibcode:2021A&A...650A.201R. S2CID 233476431. arXiv:2104.14972 . doi:10.1051/0004-6361/202140985.
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