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天市左垣十

(重定向自巨蛇座ξ

天市左垣十(巨蛇座ξ)也称南海,又名BD-15 4621HD 159876SAO 160700HR 6561,是巨蛇座的三合星系统[10],视星等为3.54,其B1900.0坐标为赤經17h 37m 35.19983s,赤緯-15° 23′ 54.7940″。

天市左垣十
觀測資料
曆元 J2000.0
星座 巨蛇座
星官
赤經 17h 37m 35.19983s[1]
赤緯 -15° 23′ 54.7940″[1]
視星等(V) 3.54[2]
特性
光谱分类A9 IIIp Sr[3]
U−B 色指数+0.12[2]
B−V 色指数+0.27[2]
天体测定
徑向速度 (Rv)−42.8±0.7[4] km/s
自行 (μ) 赤经:−42.10[1] mas/yr
赤纬:−59.94[1] mas/yr
视差 (π)30.98 ± 0.19[1] mas
距离105.3 ± 0.6 ly
(32.3 ± 0.2 pc)
绝对星等 (MV)+1.00[5]
軌道[6]
绕行周期 (P)2.2923 d
偏心率 (e)0.00
近心点 历元 (T)2419210.191 JD
半振幅 (K1)
(primary)
19.4 km/s
詳細資料
ξ Ser Aa
質量2.06[7] M
表面重力 (log g)3.55[3]
亮度30.6[8] L
溫度7,217±41[7] K
金属量 [Fe/H]+0.07[3] dex
自轉速度 (v sin i)54[9] km/s
年齡1.03[7] Gyr
ξ Ser Ab
質量0.18[10] M
其他命名
55 Serpentis, BD−15° 4621, HD 159876, HIP 86263, HR 6561, SAO 160700.[11]
參考資料庫
SIMBADdata

参考文献编辑

  1. ^ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752, doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 2.2 Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV data (SIMBAD), 1986, Bibcode:1986EgUBV........0M. 
  3. ^ 3.0 3.1 3.2 Gray, R. O.; 等, Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample, The Astronomical Journal, July 2006, 132 (1): 161–170, Bibcode:2006AJ....132..161G, arXiv:astro-ph/0603770, doi:10.1086/504637. 
  4. ^ de Bruijne, J. H. J.; Eilers, A.-C., Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project, Astronomy & Astrophysics, October 2012, 546: 14, Bibcode:2012A&A...546A..61D, arXiv:1208.3048, doi:10.1051/0004-6361/201219219, A61. 
  5. ^ Anderson, E.; Francis, Ch., XHIP: An extended hipparcos compilation, Astronomy Letters, 2012, 38 (5): 331, Bibcode:2012AstL...38..331A, arXiv:1108.4971, doi:10.1134/S1063773712050015. 
  6. ^ Pourbaix, D.; 等, SB9: The ninth catalogue of spectroscopic binary orbits, Astronomy and Astrophysics, 2004, 424 (2): 727, Bibcode:2004A&A...424..727P, arXiv:astro-ph/0406573, doi:10.1051/0004-6361:20041213. 
  7. ^ 7.0 7.1 7.2 Luck, R. Earle, Abundances in the Local Region. I. G and K Giants, The Astronomical Journal, 2015, 150 (3): 88, Bibcode:2015AJ....150...88L, arXiv:1507.01466, doi:10.1088/0004-6256/150/3/88. 
  8. ^ McDonald, I.; 等, Fundamental Parameters and Infrared Excesses of Hipparcos Stars, Monthly Notices of the Royal Astronomical Society, 2012, 427 (1): 343–57, Bibcode:2012MNRAS.427..343M, arXiv:1208.2037, doi:10.1111/j.1365-2966.2012.21873.x. 
  9. ^ Royer, F.; 等, Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i, Astronomy and Astrophysics, October 2002, 393: 897−911, Bibcode:2002A&A...393..897R, arXiv:astro-ph/0205255, doi:10.1051/0004-6361:20020943. 
  10. ^ 10.0 10.1 Tokovinin, A.; 等, Tertiary companions to close spectroscopic binaries, Astronomy and Astrophysics, May 2006, 450 (2): 681–69, Bibcode:2006A&A...450..681T, arXiv:astro-ph/0601518, doi:10.1051/0004-6361:20054427. 
  11. ^ ksi Ser -- Spectroscopic binary, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2017-03-23].