羅斯47

Ross 47
觀測資料
曆元 J1950.0
星座 獵戶座
星官
赤經 05h 42m 09.26769s[1]
赤緯 +12° 29′ 21.6048″[1]
視星等（V） +11.48 - 11.55[2]
特性
演化阶段紅矮星
光谱分类M4V[3]
U−B 色指数+14.264
B−V 色指数+13.130
变星类型BY Dra[2]
天体测定
徑向速度 (Rv)106.06±0.18[1] km/s
自行 (μ) 赤经：+1,997.342[1] mas/yr
赤纬：−1569.63[1] mas/yr
视差 (π)172.6762 ± 0.0286[1] mas
距离18.888 ± 0.003 ly
(5.7912 ± 0.0010 pc)
绝对星等 (MV)+12.73[4]
詳細資料
質量0.218±0.005[5] M☉
半徑0.238±0.009[5] R☉
表面重力 (log g)4.44[1]
亮度0.006288±0.000094[5] L☉
溫度3,334+67
−63[5] K
金属量 [Fe/H]−0.19±0.17[6] dex
自轉170[7]
自轉速度 (v sin i)3.1[8] km/s
年齡7.1[9] Gyr
其他命名
V1352 Ori、​GJ 213、​HIP 26857、​Ci 20 344、​G 102-22、​LFT 425、​LHS 31、​LTT 11704、​NLTT 15489、​Ross 47、​TYC 722-455-1、​2MASS J05420897+1229252[10]
參考資料庫
SIMBAD资料
Ross 47 is located in the constellation Orion
Ross 47 is located in the constellation Orion
Ross 47
羅斯47在獵戶座的位置

羅斯47是一顆位於獵戶座光譜型M4的變星，距離地球18.8光年。

參考

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Vallenari, A.; et al. Gaia Data Release 3. Summary of the content and survey properties. Astronomy & Astrophysics. 2022. arXiv:2208.00211 可免费查阅. doi:10.1051/0004-6361/202243940 可免费查阅.  已忽略未知参数|collaboration= (帮助) Gaia DR3 record for this source at VizieR.
  2. ^ 2.0 2.1 Samus, N. N.; et al. General Catalogue of Variable Stars. Astronomy Reports. GCVS 5.1. 2017, 61 (1): 80–88. Bibcode:2017ARep...61...80S. S2CID 125853869. doi:10.1134/S1063772917010085. 
  3. ^ Kirkpatrick, J. Davy; Henry, Todd J.; McCarthy, Donald W. Jr. A standard stellar spectral sequence in the red/near-infrared - Classes K5 to M9. Astrophysical Journal Supplement. 1991, 77: 417. Bibcode:1991ApJS...77..417K. doi:10.1086/191611. 
  4. ^ Anderson, E.; Francis, Ch. XHIP: An extended hipparcos compilation. Astronomy Letters. May 2012, 38 (5): 331–346. Bibcode:2012AstL...38..331A. ISSN 1063-7737. S2CID 119257644. arXiv:1108.4971 可免费查阅. doi:10.1134/S1063773712050015. eISSN 1562-6873. 
  5. ^ 5.0 5.1 5.2 5.3 Pineda, J. Sebastian; Youngblood, Allison; France, Kevin. The M-dwarf Ultraviolet Spectroscopic Sample. I. Determining Stellar Parameters for Field Stars. The Astrophysical Journal. September 2021, 918 (1): 23. Bibcode:2021ApJ...918...40P. S2CID 235435757. arXiv:2106.07656 可免费查阅. doi:10.3847/1538-4357/ac0aea. 40. 
  6. ^ 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 可免费查阅, doi:10.1051/0004-6361/201937194 
  7. ^ Astudillo-Defru, N.; Delfosse, X.; Bonfils, X.; Forveille, T.; Lovis, C.; Rameau, J. Magnetic activity in the HARPS M dwarf sample. The rotation-activity relationship for very low-mass stars through R'HK. Astronomy and Astrophysics. 2017, 600: 600. Bibcode:2017A&A...600A..13A. S2CID 119237202. arXiv:1610.09007 可免费查阅. doi:10.1051/0004-6361/201527078. 
  8. ^ Hojjatpanah, S.; Oshagh, M.; Figueira, P.; Santos, N. C.; Amazo-Gómez, E. M.; Sousa, S. G.; Adibekyan, V.; Akinsanmi, B.; Demangeon, O.; Faria, J.; Gomes Da Silva, J.; Meunier, N. The correlation between photometric variability and radial velocity jitter. Based on TESS and HARPS observations. Astronomy and Astrophysics. 2020, 639: 639. Bibcode:2020A&A...639A..35H. S2CID 218719951. arXiv:2005.10105 可免费查阅. doi:10.1051/0004-6361/202038035. 
  9. ^ Maldonado, J.; Micela, G.; Baratella, M.; d'Orazi, V.; Affer, L.; Biazzo, K.; Lanza, A. F.; Maggio, A.; González Hernández, J. I.; Perger, M.; Pinamonti, M.; Scandariato, G.; Sozzetti, A.; Locci, D.; Di Maio, C.; Bignamini, A.; Claudi, R.; Molinari, E.; Rebolo, R.; Ribas, I.; Toledo-Padrón, B.; Covino, E.; Desidera, S.; Herrero, E.; Morales, J. C.; Suárez-Mascareño, A.; Pagano, I.; Petralia, A.; Piotto, G.; Poretti, E. HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets. Astronomy and Astrophysics. 2020, 644: A68. Bibcode:2020A&A...644A..68M. arXiv:2010.14867 可免费查阅. doi:10.1051/0004-6361/202039478. 
  10. ^ Ross 47. SIMBAD. 斯特拉斯堡天文資料中心.