格利澤185

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格利澤185
觀測資料
曆元 J2000
星座 天兔座
星官
赤經 05h 02m 28.4215s[1]
赤緯 −21° 15′ 23.921″[1]
視星等(V) 8.36[2]
特性
光谱分类M0 V[3]
天体测定
徑向速度 (Rv)−15.2[4] km/s
自行 (μ) 赤经:−141.56[1] mas/yr
赤纬:−221.75[1] mas/yr
视差 (π)117.38 ± 1.81[1] mas
距离27.8 ± 0.4 ly
(8.5 ± 0.1 pc)
軌道[2]
繞行週期 (P)43.55 ± 0.27 yr
半長軸 (a)1.062 ± 0.049"
偏心率 (e)0.720 ± 0.028
倾斜角 (i)60.7 ± 2.1°
升交点黃經 (Ω)246.5 ± 3.9°
近心点 曆元 (T)B 1997.46 ± 0.86
近心點幅角 (ω)
(secondary)
280.6 ± 1.2°
其他命名
HD 32450, HIP 23455, LTT 2151.[5][3]

格利澤185是位於天兔座的一個聯星系統,他與太陽系距離大約是27.2光年。這顆恆星大約在35,000後會最靠近太陽,屆時的距離大約是14.8光年 (4.5秒差距)[6]

參考資料[编辑]

  1. ^ 1.0 1.1 1.2 1.3 1.4 Perryman, M. A. C.; et al.. The HIPPARCOS Catalogue. Astronomy & Astrophysics. July 1997, 323: L49–L52. Bibcode:1997A&A...323L..49P. 
  2. ^ 2.0 2.1 Sixth Catalog of Orbits of Visual Binary Stars. United States Naval Observatory. [2023-04-12]. (原始内容存档于2017-08-01). 
  3. ^ 3.0 3.1 Koen, C.; Kilkenny, D.; van Wyk, F.; Cooper, D.; Marang, F. UBV(RI)C photometry of Hipparcos red stars. Monthly Notices of the Royal Astronomical Society. July 2002, 334 (1): 20–38. Bibcode:2002MNRAS.334...20K. doi:10.1046/j.1365-8711.2002.05403.x. 
  4. ^ Evans, D. S. The Revision of the General Catalogue of Radial Velocities. Batten, Alan Henry; Heard, John Frederick (编). Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30. University of Toronto: International Astronomical Union. June 20–24, 1966 [2009-09-10]. (原始内容存档于2019-06-26). 
  5. ^ LTT 2151 -- High proper-motion Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2010-04-06]. (原始内容存档于2019-08-18). 
  6. ^ García-Sánchez, J.; Weissman, P. R.; Preston, R. A.; Jones, D. L.; Lestrade, J.-F.; Latham, D. W.; Stefanik, R. P.; Paredes, J. M. Stellar encounters with the solar system. Astronomy and Astrophysics. 2001, 379 (2): 634–659. Bibcode:2001A&A...379..634G. doi:10.1051/0004-6361:20011330.  See Table 4, p. 644.