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海山增一

p Velorum
观测资料
历元 J2000
星座 Vela
星官
赤经 10h 37m 18.13995s[1]
赤纬 -48° 13′ 32.2349″[1]
视星等(V) 3.83[2] (4.13 / 5.76)[3]
特性
光谱分类F3IV + F0V + A6V[2]
U−B 色指数+0.04[2]
B−V 色指数+0.31[2]
天体测定
径向速度 (Rv)21.20 ± 0.7[4] km/s
自行 (μ) 赤经:-133.41[1] mas/yr
赤纬:-1.82[1] mas/yr
视差 (π)37.26 ± 0.36[1] mas
距离87.5 ± 0.8 ly
(26.8 ± 0.3 pc)
绝对星等 (MV)2.15 / 2.70 / 2.14[2]
轨道[3]
主星p Vel A
伴星p Vel B
绕行周期 (P)16.651 yr
半长轴 (a)0.361"
偏心率 (e)0.726
倾斜角 (i)128.5°
升交点黄经 (Ω)37.2°
近心点 历元 (T)2019.562
近心点幅角 (ω)
(secondary)
288.9°
详细资料 [2]
p Vel Aa
质量2.13 M
p Vel Ab
质量1.81 M
p Vel B
质量2.41 M
其他命名
CD−47° 6042、​HIP 51986、​HR 4167、​SAO 222199
参考数据库
SIMBAD资料

海山增一船帆座中的一个三星系统。由依巴谷卫星测量得到的距地球的距离为87.5光年,26.8秒差距[1] 它在夜空中肉眼可见,视星等达到3.83。[2]

它的主要组成部分是一组联星,轨道周期为10.21 天。联星由两颗F型主序星组成,一颗次巨星和一颗主序星[2] 除此之外还有一颗白色A型主序星作为伴星,视星等为5.76。[3]它距离联星0.361角秒,轨道周期为16.651年。[3]

参考文献

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F.; et al. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. 2007, 474 (2): 653–664 [2018-03-22]. Bibcode:2007A&A...474..653V. arXiv:0708.1752可免费查阅. doi:10.1051/0004-6361:20078357. (原始内容存档于2019-12-14). 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Evans, D. S. A Rediscussion of p Velorum. Monthly Notices of the Royal Astronomical Society. 1969, 142 (4): 523. Bibcode:1969MNRAS.142..523E. doi:10.1093/mnras/142.4.523. 
  3. ^ 3.0 3.1 3.2 3.3 Sixth Catalog of Orbits of Visual Binary Stars. United States Naval Observatory. [2018-03-22]. (原始内容存档于2017-08-01). 
  4. ^ Gontcharov, G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system. Astronomy Letters. 2006, 32 (11): 759–771 [2018-03-22]. Bibcode:2006AstL...32..759G. arXiv:1606.08053可免费查阅. doi:10.1134/S1063773706110065. (原始内容存档于2018-08-08). 
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海山增一
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