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)。

Psi1
Diagram showing star positions and boundaries of the Auriga constellation and its surroundings
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approx. 4,000 ly
(approx. 1,200 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]

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. van Leeuwen, Floor, , Astronomy and Astrophysics, November 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752v1可免费查阅, doi:10.1051/0004-6361:20078357. Note: see VizieR catalogue I/311 Archive.is存檔,存档日期2012-12-05.
  2. Nicolet, B., , Astronomy and Astrophysics Supplement Series, 1978, 34: 1–49, Bibcode:1978A&AS...34....1N.
  3. Levesque, Emily M.; et al, , The Astrophysical Journal, August 2005, 628 (2): 973–985, Bibcode:2005ApJ...628..973L, arXiv:astro-ph/0504337可免费查阅, doi:10.1086/430901.
  4. Adelman, Saul J., , Baltic Astronomy, 2001, 10: 589–593, Bibcode:2001BaltA..10..589A.
  5. Wielen, R.; et al, (35), Astronomisches Rechen-Institut Heidelberg, 1999, Bibcode:1999VeARI..35....1W.
  6. Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M., , Monthly Notices of the Royal Astronomical Society, January 2011, 410 (1): 190–200, Bibcode:2011MNRAS.410..190T, arXiv:1007.4883可免费查阅, doi:10.1111/j.1365-2966.2010.17434.x.
  7. Hohle, M. M.; Neuhäuser, R.; Schutz, B. F., , Astronomische Nachrichten, April 2010, 331 (4): 349, Bibcode:2010AN....331..349H, arXiv:1003.2335可免费查阅, doi:10.1002/asna.200911355.
  8. Bakos, Gustav A., , Journal of the Royal Astronomical Society of Canada, October 1971, 65: 222, Bibcode:1971JRASC..65..222B.
  9. , SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2012-08-23], (原始内容存档于2016-03-05).
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