败臼增一

败臼增一南鱼座β)在星表上是南天星座南鱼座内的一对联星[5][6]。它的视星等为肉眼可见的4.29等[2]。依据从地球观察得到的年周视差22.84mas[1],这颗恒星与太阳的距离是143光年。它的座标位置是X射线的发射源,亮度为88.5×1020 W,但这应该不是来自这颗A-型恒星[11],可能还有其它发射源。

败臼增一(南鱼座β)
Diagram showing star positions and boundaries of the Piscis Austrinus constellation and its surroundings
败臼增一的位置(圆圈)
观测资料
历元 J2000.0
星座 南鱼座
星官 败臼虚宿
赤经 22h 31m 30.33038s[1]
赤纬 −32° 20′ 45.8653″[1]
视星等(V) +4.29[2] (4.29 + 6.22)[3]
特性
光谱分类A1 V[4] + A2 V[5][6]
U−B 色指数+0.02[2]
B−V 色指数+0.01[2]
天体测定
径向速度 (Rv)5.5±0.5[7] km/s
自行 (μ) 赤经:+59.12[1] mas/yr
赤纬:−18.83[1] mas/yr
视差 (π)22.84 ± 0.21[1] mas
距离143 ± 1 ly
(43.8 ± 0.4 pc)
绝对星等 (MV)1.00[8]
详细资料
质量2.33±0.07[8] M
半径2.10[9] R
表面重力 (log g)4.12±0.03[8]
亮度37[8] L
温度9,638[9] K
自转速度 (v sin i)30[4] km/s
年龄339[8] Myr
其他命名
β PsA, 17 Piscis Austrini, CPD−32° 6506, FK5 1592, HD 213398, HIP 111188, HR 8576, SAO 213883, WDS J22315-3221A[10]
参考数据库
SIMBAD资料

Oblak(1978年)曾将其视为一颗三合星[3],但随后就将其列为联星[5][6]。它的星等为4.29[3],主星A,是一颗白色的A型主序星类型为 A1V[4]。估计质量是2.3太阳质量[8],半径是2.1太阳半径[9]有效温度是9,638K[9],来自光球层的发光强度是太阳亮度的37倍[8]红外过量的证据显示它有岩屑盘,估计其轨道距离主星12AU,温度为188K[9]。伴星B的星等为7.8,恒星分类为A2V,与主星距离30.3角秒[5][6]

败臼增一相对于太阳以每秒14.4公里的速度在银河系中移动。它投射的银河轨道让它在距离银河中心23,900至28,300光年的轨道上运动[12][来源可靠?]

中国,它与败臼一(天鹤座γ)、败臼二败臼三败臼四英语19 Piscis Austrini组成星官败臼[13][14]

参考资料

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 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 2.3 Nicolet, B., Photoelectric photometric Catalogue of homogeneous measurements in the UBV System, Astronomy and Astrophysics Supplement Series, 1978, 34: 1–49, Bibcode:1978A&AS...34....1N. 
  3. ^ 3.0 3.1 3.2 Oblak, E., uvbybeta photometry of wide visual double stars with B, A and F spectral type - I., Astronomy and Astrophysics Supplement Series, December 1978, 34: 453–475, Bibcode:1978A&AS...34..453O. 
  4. ^ 4.0 4.1 4.2 Royer, F.; et al, Rotational velocities of A-type stars. III. Velocity distributions, Astronomy and Astrophysics, February 2007, 463 (2): 671–682, Bibcode:2007A&A...463..671R, arXiv:astro-ph/0610785 , doi:10.1051/0004-6361:20065224. 
  5. ^ 5.0 5.1 5.2 5.3 Eggleton, P. P.; Tokovinin, A. A., A catalogue of multiplicity among bright stellar systems, Monthly Notices of the Royal Astronomical Society, September 2008, 389 (2): 869–879, Bibcode:2008MNRAS.389..869E, arXiv:0806.2878 , doi:10.1111/j.1365-2966.2008.13596.x. 
  6. ^ 6.0 6.1 6.2 6.3 Rodriguez, David R.; et al, Stellar multiplicity and debris discs: an unbiased sample, Monthly Notices of the Royal Astronomical Society, May 2015, 449 (3): 3160–3170, Bibcode:2015MNRAS.449.3160R, arXiv:1503.01320 , doi:10.1093/mnras/stv483. 
  7. ^ Gontcharov, G. A., Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system, Astronomy Letters, November 2006, 32 (11): 759–771, Bibcode:2006AstL...32..759G, arXiv:1606.08053 , doi:10.1134/S1063773706110065. 
  8. ^ 8.0 8.1 8.2 8.3 8.4 8.5 8.6 Gerbaldi, M.; et al, Search for reference A0 dwarf stars: Masses and luminosities revisited with HIPPARCOS parallaxes, Astronomy and Astrophysics Supplement, June 1999, 137 (2): 273–292, Bibcode:1999A&AS..137..273G, doi:10.1051/aas:1999248. 
  9. ^ 9.0 9.1 9.2 9.3 9.4 Patel, Rahul I.; et al, A Sensitive Identification of Warm Debris Disks in the Solar Neighborhood through Precise Calibration of Saturated WISE Photometry, The Astrophysical Journal Supplement Series, May 2014, 212 (1): 23, Bibcode:2014ApJS..212...10P, arXiv:1403.3435 , doi:10.1088/0067-0049/212/1/10, 10. 
  10. ^ bet PsA -- High proper-motion Star, SIMBAD Astronomical Database (斯特拉斯堡天文资料中心), [2017-05-27], (原始内容存档于2020-11-05). 
  11. ^ Schröder, C.; Schmitt, J. H. M. M., X-ray emission from A-type stars, Astronomy and Astrophysics, November 2007, 475 (2): 677–684, Bibcode:2007A&A...475..677S, doi:10.1051/0004-6361:20077429. 
  12. ^ Beta Piscis Austrini (HIP 111188). [2018-09-23]. (原始内容存档于2013-04-14). 
  13. ^ Allen, Richard Hinckley, Star Names — Their Lore and Meaning: Piscis Australis, the Southern Fish, 1963 [2017-05-27], (原始内容存档于2023-03-10). 
  14. ^ 败臼是虚宿内的一个星官,意思是空的废墟或是负责葬礼的官吏。

外部链接

  • Kaler, James B., Beta Piscis Austrini, Stars (University of Illinois), November 12, 2009 [2018-09-23], (原始内容存档于2013-04-22).