维基百科
座旗增一
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）。
| 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 | |
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
- ^ 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 Archive.is的存檔，存档日期2012-12-05.
- ^ 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.
- ^ 3.0 3.1 3.2 3.3 Levesque, Emily M.; et al, 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.
- ^ 4.0 4.1 Adelman, Saul J., Stars with the Largest Hipparcos Photometric Amplitudes, Baltic Astronomy, 2001, 10: 589–593, Bibcode:2001BaltA..10..589A.
- ^ Wielen, R.; et al, Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions (35), Astronomisches Rechen-Institut Heidelberg, 1999, Bibcode:1999VeARI..35....1W.
- ^ 6.0 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.
- ^ 7.0 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.
- ^ 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.
- ^ phi Aur -- Star in double system, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2012-08-23].