LP 816-60
| 觀測資料 曆元 J2000 | |
|---|---|
| 星座 | 摩羯座 |
| 星官 | |
| 赤經 | 20h 52m 33.01679s[1] |
| 赤緯 | -16° 58′ 29.0249″[1] |
| 視星等（V） | 11.458[2] |
| 特性 | |
| 光谱分类 | M4[3] |
| 天体测定 | |
| 徑向速度 (Rv) | 8.5[4] km/s |
| 自行 (μ) | 赤经：-309.115 mas/yr 赤纬：37.051 mas/yr |
| 视差 (π) | 177.9312 ± 0.0365[5] mas |
| 距离 | 18.330 ± 0.004 ly (5.620 ± 0.001 pc) |
| 詳細資料 [6] | |
| 質量 | 0.224+0.022 − M☉ |
| 半徑 | 0.266+0.012 − R☉ |
| 表面重力 (log g) | 4.584[7] |
| 溫度 | 3030+27 −[8] K |
| 金属量 [Fe/H] | -0.11+0.07 −[8] dex |
| 自轉 | 67.6+0.1 − d.[9] |
| 自轉速度 (v sin i) | 2.70+0.66 −[7] km/s |
| 年齡 | 2.57+8.15 −1.95 Gyr |
| 其他命名 | |
| 參考資料庫 | |
| SIMBAD | 资料 |
  LP 816-60 LP 816-60在摩羯座的位置 | |
LP 816-60是一顆位於摩羯座的紅矮星[3] ，光譜類型為M4，距離地球18.6光年。[1]
物理特性
[编辑]在LP 816-60周圍沒有檢測到大質量行星。[3]這顆恆星的星斑週期為10.6年，[9]色球層的弱磁場平均為4.4G。[12]
參考
[编辑]- ^ 1.0 1.1 1.2 1.3 Perryman; et al. HIP 103039. The Hipparcos and Tycho Catalogues. 1997 [2014-11-29]. （原始内容存档于2016-03-04）.
- ^ Koen, C.; Kilkenny, D.; van Wyk, F.; Marang, F. UBV(RI)C JHK observations of Hipparcos-selected nearby stars. Monthly Notices of the Royal Astronomical Society. 2010, 403 (4): 1949–1968. Bibcode:2010MNRAS.403.1949K. doi:10.1111/j.1365-2966.2009.16182.x
.
- ^ 3.0 3.1 3.2 Montet, Benjamin T.; Crepp, Justin R.; Johnson, John Asher; Howard, Andrew W.; Marcy, Geoffrey W., The Trends High-Contrast Imaging Survey. Iv. The Occurrence Rate of Giant Planets Around M Dwarfs, The Astrophysical Journal, 2013, 781: 28, S2CID 26620552, arXiv:1307.5849 , doi:10.1088/0004-637X/781/1/28
- ^ Henry, Todd J.; Jao, Wei-Chun; Winters, Jennifer G.; Dieterich, Sergio B.; Finch, Charlie T.; Ianna, Philip A.; Riedel, Adric R.; Silverstein, Michele L.; Subasavage, John P.; Vrijmoet, Eliot Halley, The Solar Neighborhood XLIV: RECONS Discoveries within 10 parsecs, The Astronomical Journal, 2018, 155 (6): 265, Bibcode:2018AJ....155..265H, S2CID 53983430, arXiv:1804.07377 , doi:10.3847/1538-3881/aac262
- ^ Brown, A. G. A.; et al. Gaia Early Data Release 3: Summary of the contents and survey properties. Astronomy & Astrophysics. 2021, 649: A1. Bibcode:2021A&A...649A...1G. S2CID 227254300. arXiv:2012.01533 . doi:10.1051/0004-6361/202039657 . 已忽略未知参数
|collaboration=(帮助) (勘误: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR. - ^ Mann, Andrew W.; Feiden, Gregory A.; Gaidos, Eric; Boyajian, Tabetha; Braun, Kaspar von, How to Constrain Your M Dwarf: Measuring Effective Temperature, Bolometric Luminosity, Mass, and Radius, The Astrophysical Journal, 2015, 804 (1): 64, Bibcode:2015ApJ...804...64M, S2CID 19269312, arXiv:1501.01635 , doi:10.1088/0004-637X/804/1/64
- ^ 7.0 7.1 Hojjatpanah, S.; Figueira, P.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Delgado-Mena, E.; Alibert, Y.; Cristiani, S.; González Hernández, J. I.; Lanza, A. F.; Di Marcantonio, P.; Martins, J. H. C.; Micela, G.; Molaro, P.; Neves, V.; Oshagh, M.; Pepe, F.; Poretti, E.; Rojas-Ayala, B.; Rebolo, R.; Suárez Mascareño, A.; Zapatero Osorio, M. R., Catalog for the ESPRESSO blind radial velocity exoplanet survey, Astronomy & Astrophysics, 2019, 629: A80, Bibcode:2019A&A...629A..80H, S2CID 199552090, arXiv:1908.04627 , doi:10.1051/0004-6361/201834729
- ^ 8.0 8.1 Antoniadis-Karnavas, A.; Sousa, S. G.; Delgado-Mena, E.; Santos, N. C.; Teixeira, G. D. C.; Neves, V., ODUSSEAS: A machine learning tool to derive effective temperature and metallicity for M dwarf stars, Astronomy & Astrophysics, 2020, 636: A9, Bibcode:2020A&A...636A...9A, S2CID 211252698, arXiv:2002.09367 , doi:10.1051/0004-6361/201937194
- ^ 9.0 9.1 Suárez Mascareño, A.; Rebolo, R.; González Hernández, J. I., Magnetic cycles and rotation periods of late-type stars from photometric time series, Astronomy & Astrophysics, 2016, 595: A12, Bibcode:2016A&A...595A..12S, S2CID 118555782, arXiv:1607.03049 , doi:10.1051/0004-6361/201628586
- ^ Luyten, Willem Jacob. NLTT 50038. NLTT Catalogue. 1979 [2023-03-21]. （原始内容存档于2016-03-04）.
- ^ Perryman; et al. HIP 103039. The Hipparcos and Tycho Catalogues. 1997 [2014-11-29]. （原始内容存档于2016-03-04）.
- ^ Moutou, C.; Hébrard, E. M.; Morin, J.; Malo, L.; Fouqué, P.; Torres-Rivas, A.; Martioli, E.; Delfosse, X.; Artigau, E.; Doyon, R., SPIRou input catalogue: Activity, rotation and magnetic field of cool dwarfs, Monthly Notices of the Royal Astronomical Society, 2017, 472 (4): 4563–4586, arXiv:1709.01650 , doi:10.1093/mnras/stx2306
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