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HD 222582

HD 222582
觀測資料
曆元 J2000
星座 寶瓶座
星官
赤經 23h 41m 51.53s[1]
赤緯 –05° 59′ 08.7″[1]
視星等(V) 7.685 ± 0.005[2]
特性
光谱分类G5V
B−V 色指数0.648
天体测定
徑向速度 (Rv)11.5 ± 0.2 km/s
自行 (μ) 赤经:-144.88 ± 0.88[1] mas/yr
赤纬:-111.93 ± 0.56[1] mas/yr
视差 (π)23.94 ± 0.74[1] mas
距离136 ± 4 ly
(42 ± 1 pc)
绝对星等 (MV)4.44 ± 0.12[2]
詳細資料
質量1.00[2] M
半徑1.16 ± 0.07[2] R
表面重力 (log g)4.34 ± 0.10[2]
亮度1.2 L
溫度5776 ± 70[2] K
金属量 [Fe/H]-0.01 ± 0.07[2] dex
自轉速度 (v sin i)1.5 ± 1.0[2] km/s
年齡6.16 Gyr
其他命名
BD-06° 6262, GC 32912, HD 222582, HIP 116906, NLTT 57682, SPOCS 1030, SAO 146849.
參考資料庫
SIMBAD资料
Planet
HD 222582 b Data Simbad页面存档备份,存于互联网档案馆
Data ExoPlanet页面存档备份,存于互联网档案馆
资料来源:
依巴谷星表CCDM (2002)、亮星星表

HD 222582是一顆視星等7.7等的黃矮星,距離地球約137光年,位於寶瓶座。

行星系統

1999年史蒂文·沃格特在該恆星旁發現一顆氣體巨行星,該恆星另有一顆軌道比行星大的紅矮星伴星。

HD 222582的行星系
成員
(依恆星距離)
质量 半長軸
(AU)
轨道周期
()
離心率 傾角 半径
b >7.75 MJ 1.35 572 0.76
c (未确认) >0.0513 MJ 0.12 15.144 0.5632

參見

參考資料

  1. ^ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. HIP 116906. Hipparcos, the New Reduction. 2007 [2009-12-11]. (原始内容存档于2016-03-03). 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Fuhrmann, Klaus, Nearby stars of the Galactic disc and halo - IV, Monthly Notices of the Royal Astronomical Society, February 2008, 384 (1): 173–224, Bibcode:2008MNRAS.384..173F, doi:10.1111/j.1365-2966.2007.12671.x 

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