維基百科

格利澤205

格利澤205是位於獵戶座附近一顆光譜類型為M1.5的紅矮星，距離地球18.6光年。[1]

GJ 205
Gliese 205 is located in the constellation Orion
Gliese 205 is located in the constellation Orion
Gliese 205
格利澤205在獵戶座的位置

觀測資料
曆元 J2000
星座 獵戶座
星官
赤經 05h 31m 27.39578s[1]
赤緯 −03° 40′ 38.0240″[1]
視星等（V） 7.932[2]
特性
演化階段紅矮星
光譜分類M1.5V[3]
天體測定
徑向速度 (Rv)8.26[1] km/s
自行 (μ) 赤經：761.631 mas/yr
赤緯：−2092.209 mas/yr
視差 (π)175.3131 ± 0.0204[1] mas
距離18.604 ± 0.002 ly
(5.7041 ± 0.0007 pc)
絕對星等 (MV)9.188[4]
詳細資料
質量0.556[5] M☉
半徑0.594[5] R☉
表面重力 (log g)4.703[5]
亮度0.062[5] L☉
溫度3,891[5] K
金屬量 [Fe/H]+0.23[5] dex
自轉35.0±0.1 d[6]
自轉速度 (v sin i)2.73[7] km/s
年齡2.6[2] Gyr
其他命名
BD−03°1123,[8] GJ 205,[9] HD 36395,[10] HIP 25878,[11] LHS 30,[12] SAO 132211,[13] Wolf 1453,[14] W. B. V. 592[15][16], Weisse I, 5h 592, [17][18][16] Strb. 1611[19][20], Cin. 705[21], Ci 20=334[22], G 99-15, LFT 416, LTT 2293, NLTT 15215[23] PLX 1255,[24] TYC 4770-574-1,[25] 2MASS J05312734-0340356
參考資料庫
SIMBAD資料

參考

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  2. ^ 2.0 2.1 Mann, Andrew W.; Feiden, Gregory A.; Gaidos, Eric; Boyajian, Tabetha; von Braun, Kaspar. 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. 
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  5. ^ 5.0 5.1 5.2 5.3 5.4 5.5 Schweitzer, A.; et al. The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars. Astronomy & Astrophysics. May 2019, 625: 16. Bibcode:2019A&A...625A..68S. S2CID 102351979. arXiv:1904.03231  . doi:10.1051/0004-6361/201834965. A68. 
  6. ^ Suárez Mascareño, A.; et al, Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators, Monthly Notices of the Royal Astronomical Society, September 2015, 452 (3): 2745–2756, Bibcode:2015MNRAS.452.2745S, S2CID 119181646, arXiv:1506.08039  , doi:10.1093/mnras/stv1441. 
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  10. ^ Cannon, Annie Jump; et al. HD 36395. Henry Draper Catalogue and Extension. 1918–1924 [2023-03-21]. （原始內容存檔於2016-03-04）. 
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  12. ^ Luyten, Willem Jacob. LHS 30. LHS Catalogue, 2nd Edition. 1979 [2023-03-21]. （原始內容存檔於2016-03-04）. 
  13. ^ SAO Staff. SAO 132211. SAO Star Catalog J2000. 1966 [2023-03-21]. （原始內容存檔於2020-10-23）. 
  14. ^ Wolf, M. Einige starker bewegte Sterne beim Orionnebel. Astronomische Nachrichten. 1924, 222 (15): 253–256. Bibcode:1924AN....222..253W. doi:10.1002/asna.19242221505. 
  15. ^ Comstock, G. C. Research work at the Washburn Observatory. Stellar parallax, the lunar atmosphere, the ocular heliometer. The Astrophysical Journal. 1897, 6: 419. Bibcode:1897ApJ.....6..419C. doi:10.1086/140424. 
  16. ^ 16.0 16.1 Weisse, Maximiliano; Bessel, Friedrich (1846). "Positiones mediae stellarum fixarum inter −15° et +15° declinationis ex zonis regiomontanis". Petropoli. Typis academiae scientarum. Google Books id: UBTnAAAAMAAJ. Page 50 (W. B. V. 592)
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  22. ^ Porter, J. G.; Yowell, E. J.; Smith, E. S. A catalogue of 1474 stars with proper motion exceeding four-tenths year.. Publications of the Cincinnati Observatory. 1930, 20: 1–32. Bibcode:1930PCinO..20....1P. 
  23. ^ Luyten, Willem Jacob. NLTT 15215. NLTT Catalogue. 1979 [2023-03-21]. （原始內容存檔於2020-10-23）. 
  24. ^ Van Altena W. F.; Lee J. T.; Hoffleit E. D. GCTP 1255. The General Catalogue of Trigonometric Stellar Parallaxes Fourth. 1995 [2023-03-21]. （原始內容存檔於2020-09-25）. 
  25. ^ Perryman; et al. HIP 25878. The Hipparcos and Tycho Catalogues. 1997 [2023-03-21]. （原始內容存檔於2020-10-26）. 
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