座旗增一

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Psi1
Diagram showing star positions and boundaries of the Auriga constellation and its surroundings
Cercle rouge 100%.svg

ψ1 在御夫座的位置 (circled)
觀測資料
曆元 J2000
星座 御夫座
星官
赤經 06h 24m 53.90129s[1]
赤緯 +49° 17′ 16.4199″[1]
視星等(V) 4.91[2]
特性
光谱分类M0 I[3]
U−B 色指数+2.29[2]
B−V 色指数+1.97[2]
R−I 色指数1.07
变星类型LC[4]
天体测定
徑向速度 (Rv)+4.7[5] km/s
自行 (μ) 赤经:–0.66[1] mas/yr
赤纬:–1.82[1] mas/yr
视差 (π)0.82 ± 0.28[1] mas
距离大约4000 ly
(大约1200 pc)
詳細資料
質量14.4 ± 0.8[6] M
亮度63,579[7] L
溫度3,750[3] K
金属量 [Fe/H]+0.08[8] dex
年齡12.3 ± 0.4[6] Myr
其他命名
BD+49 1488, FK5 242, HD 44537, HIP 30520, HR 2289, SAO 41076.[9]

座旗增一ψ1Aurigae/御夫座ψ1),是御夫座的一颗恒星。视星等4.91[2],裸眼观测显得微亮。每年测量的时差数据为0.82[1],根据这个数据可以推导出距离地球4000光年(1200秒差距)。

由恒星光谱可得座旗增一为一颗M型红巨星[3]。并且座旗增一是一颗亮度变化幅度为0.44的LC型慢不规则变星[4], 它的质量是太阳的14倍[6],亮度是太阳的63,579倍[7],其外大气层有效温度3750K[3],因此显示出橘红色。

参考资料[编辑]

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, Floor, Validation of the new Hipparcos reduction, Astronomy and Astrophysics, November 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752v1, doi:10.1051/0004-6361:20078357.  Note: see VizieR catalogue I/311.
  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 3.3 Levesque, Emily M.; 等, The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought, The Astrophysical Journal, August 2005, 628 (2): 973–985, Bibcode:2005ApJ...628..973L, arXiv:astro-ph/0504337, doi:10.1086/430901. 
  4. ^ 4.0 4.1 Adelman, Saul J., Stars with the Largest Hipparcos Photometric Amplitudes, Baltic Astronomy, 2001, 10: 589–593, Bibcode:2001BaltA..10..589A. 
  5. ^ Wielen, R.; 等, Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions (35), Astronomisches Rechen-Institut Heidelberg, 1999, Bibcode:1999VeARI..35....1W. 
  6. ^ 6.0 6.1 6.2 Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M., A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun, Monthly Notices of the Royal Astronomical Society, January 2011, 410 (1): 190–200, Bibcode:2011MNRAS.410..190T, arXiv:1007.4883, doi:10.1111/j.1365-2966.2010.17434.x. 
  7. ^ 7.0 7.1 Hohle, M. M.; Neuhäuser, R.; Schutz, B. F., Masses and luminosities of O- and B-type stars and red supergiants, Astronomische Nachrichten, April 2010, 331 (4): 349, Bibcode:2010AN....331..349H, arXiv:1003.2335, doi:10.1002/asna.200911355. 
  8. ^ Bakos, Gustav A., Abundances of Heavy Elements in Late-Type Stars, Journal of the Royal Astronomical Society of Canada, October 1971, 65: 222, Bibcode:1971JRASC..65..222B. 
  9. ^ phi Aur -- Star in double system, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2012-08-23].