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贯索五北冕座γ)是位于北冕座双星系统,其视星等为3.84。

贯索五
觀測資料
曆元 J2000
星座 北冕座
星官
赤經 15h 42m 44.56551s[1]
赤緯 +26° 17′ 44.2847″[1]
視星等(V) 3.83[2] (4.04 + 5.60)[3]
特性
光谱分类B9 V + A3 V[4]
U−B 色指数−0.03[2]
B−V 色指数+0.00[2]
天体测定
徑向速度 (Rv)−15.26±4.54[5] km/s
自行 (μ) 赤经:−111.65[1] mas/yr
赤纬:+49.52[1] mas/yr
视差 (π)22.33 ± 0.50[1] mas
距离146 ± 3 ly
(45 ± 1 pc)
绝对星等 (MV)+0.56[6]
軌道[7]
绕行周期 (P)91.2±0.4 yr
半长轴 (a)0.729±0.006"
偏心率 (e)0.48±0.01
倾斜角 (i)94.45±0.07°
升交点黄经 (Ω)111.75±0.09°
近心点 历元 (T)1931.6±0.3
近心点幅角 (ω)
(secondary)
103.8±0.6°
詳細資料
γ CrB A
質量2.51±0.04[8] M
亮度59[8] L
溫度7,649±22[9] K
自轉速度 (v sin i)182±12[5] km/s
年齡400[10] Myr
其他命名
γ CrB8 CrBBD+26° 2722HD 140436、HIP 76952、HR 5849、SAO 83958、ADS 9757、WDS J15427+2618AB[11]
參考資料庫
SIMBAD data

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 Fernie, J. D., UBV observations of miscellaneous stars, Journal of the Royal Astronomical Society of Canada, June 1969, 63: 133−135, Bibcode:1969JRASC..63..133F. 
  3. ^ Cvetkovic, Z.; Ninkovic, S., On the Component Masses of Visual Binaries, Serbian Astronomical Journal, 2010, 180 (180): 71–80, Bibcode:2010SerAJ.180...71C, doi:10.2298/SAJ1080071C. 
  4. ^ Malkov, O. Yu.; 等, Dynamical masses of a selected sample of orbital binaries, Astronomy & Astrophysics, 2012, 546: 5, Bibcode:2012A&A...546A..69M, doi:10.1051/0004-6361/201219774, A69. 
  5. ^ 5.0 5.1 Becker, Juliette C.; 等, Extracting Radial Velocities of A- and B-type Stars from Echelle Spectrograph Calibration Spectra, The Astrophysical Journal Supplement Series, April 2015, 217 (2): 13, Bibcode:2015ApJS..217...29B, arXiv:1503.03874, doi:10.1088/0067-0049/217/2/29, 29. 
  6. ^ 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. 
  7. ^ Hartkopf, W. I.; 等, Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory, June 30, 2006 [2017-06-02]. 
  8. ^ 8.0 8.1 Zorec, J.; Royer, F., Rotational velocities of A-type stars. IV. Evolution of rotational velocities, Astronomy & Astrophysics, January 2012, 537: A120, Bibcode:2012A&A...537A.120Z, arXiv:1201.2052, doi:10.1051/0004-6361/201117691. 
  9. ^ Muñoz Bermejo, J.; 等, A PCA approach to stellar effective temperatures, Astronomy and Astrophysics, May 2013, 453: A95, Bibcode:2013A&A...553A..95M, arXiv:1303.7218, doi:10.1051/0004-6361/201220961. 
  10. ^ Vican, Laura, Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey, The Astronomical Journal, June 2012, 143 (6): 135, Bibcode:2012AJ....143..135V, arXiv:1203.1966, doi:10.1088/0004-6256/143/6/135. 
  11. ^ gam CrB. SIMBAD. 斯特拉斯堡天文資料中心. [2017-10-20].