巨蛇座τ⁶

巨蛇座τ6(Tau6 Ser、τ6 Serpentis或τ6 Ser)是一顆位于巨蛇座G型巨星,約距離地球450光年[1]視星等大約為6.000,[1]並且屬於大熊座移動星群的一員。[2]

拜耳命名法中的其它恆星,參見巨蛇座τ.
巨蛇座τ6
觀測資料
曆元 J2000.0
星座 巨蛇座
星官
赤經 15h 40m 59.1008s[1]
赤緯 +16° 01 28.517[1]
視星等(V) 6.000[1]
特性
光谱分类G8III[1]
U−B 色指数+0.61[2]
B−V 色指数+0.90[2]
R−I 色指数+0.46[2]
天体测定
徑向速度 (Rv)3.4 ± 0.9[1] km/s
自行 (μ) 赤经:22.16[1] mas/yr
赤纬:−16.80[1] mas/yr
视差 (π)7.24 ± 0.79[1] mas
距离approx. 450 ly
(approx. 140 pc)
绝对星等 (MV)0.3[3]
詳細資料
半徑11[4] R
其他命名
τ6 Ser, Tau6 Serpentis, Tau6 Ser, 19 Serpentis, 19 Ser, BD+16 2816, GC 21089, HD 140027, HIP 76810, HR 5840, PPM 131601, SAO 101678.[1]
參考資料庫
SIMBAD资料

參考資料

  1. * 19 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
  2. HR 5840, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line September 19, 2008.
  3. From apparent magnitude and parallax.
  4. HD 140027, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line September 19, 2008.
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