LP 816-60

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]

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
HIP 103039[1]、​LP 816-60、​NLTT 50038[10]、​TYC 6348-400-1[11]、​2MASS J20523304-1658289
參考資料庫
SIMBAD资料
LP 816-60 is located in the constellation Capricornus
LP 816-60 is located in the constellation Capricornus
LP 816-60
LP 816-60在摩羯座的位置

物理特性

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
  1. Perryman; et al. . The Hipparcos and Tycho Catalogues. 1997 [2014-11-29]. （原始内容存档于2016-03-04）.
  2. Koen, C.; Kilkenny, D.; van Wyk, F.; Marang, F. . 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 可免费查阅.
  3. Montet, Benjamin T.; Crepp, Justin R.; Johnson, John Asher; Howard, Andrew W.; Marcy, Geoffrey W., , The Astrophysical Journal, 2013, 781: 28, S2CID 26620552, arXiv:1307.5849 可免费查阅, doi:10.1088/0004-637X/781/1/28
  4. 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 Astronomical Journal, 2018, 155 (6): 265, Bibcode:2018AJ....155..265H, S2CID 53983430, arXiv:1804.07377 可免费查阅, doi:10.3847/1538-3881/aac262
  5. Brown, A. G. A.; et al. . Astronomy & Astrophysics. 2021, 649: A1. Bibcode:2021A&A...649A...1G. S2CID 227254300. arXiv:2012.01533 可免费查阅. doi:10.1051/0004-6361/202039657 可免费查阅. 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.
  6. Mann, Andrew W.; Feiden, Gregory A.; Gaidos, Eric; Boyajian, Tabetha; Braun, Kaspar von, , The Astrophysical Journal, 2015, 804 (1): 64, Bibcode:2015ApJ...804...64M, S2CID 19269312, arXiv:1501.01635 可免费查阅, doi:10.1088/0004-637X/804/1/64
  7. 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., , Astronomy & Astrophysics, 2019, 629: A80, Bibcode:2019A&A...629A..80H, S2CID 199552090, arXiv:1908.04627 可免费查阅, doi:10.1051/0004-6361/201834729
  8. Antoniadis-Karnavas, A.; Sousa, S. G.; Delgado-Mena, E.; Santos, N. C.; Teixeira, G. D. C.; Neves, V., , Astronomy & Astrophysics, 2020, 636: A9, Bibcode:2020A&A...636A...9A, S2CID 211252698, arXiv:2002.09367 可免费查阅, doi:10.1051/0004-6361/201937194
  9. Suárez Mascareño, A.; Rebolo, R.; González Hernández, J. I., , Astronomy & Astrophysics, 2016, 595: A12, Bibcode:2016A&A...595A..12S, S2CID 118555782, arXiv:1607.03049 可免费查阅, doi:10.1051/0004-6361/201628586
  10. Luyten, Willem Jacob. . NLTT Catalogue. 1979 [2023-03-21]. （原始内容存档于2016-03-04）.
  11. Perryman; et al. . The Hipparcos and Tycho Catalogues. 1997 [2014-11-29]. （原始内容存档于2016-03-04）.
  12. Moutou, C.; Hébrard, E. M.; Morin, J.; Malo, L.; Fouqué, P.; Torres-Rivas, A.; Martioli, E.; Delfosse, X.; Artigau, E.; Doyon, R., , Monthly Notices of the Royal Astronomical Society, 2017, 472 (4): 4563–4586, arXiv:1709.01650 可免费查阅, doi:10.1093/mnras/stx2306
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