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HD 69830 b

HD 69830 b
太阳系外行星 太阳系外行星列表

HD 69830与看见的HD 69830 b。
(艺术家的想像)
母恒星
母恒星 HD 69830
星座 船尾座
赤经 (α) 08h 18m 23.9s
赤纬 (δ) -12° 37′ 55.8″
距离41 ly (12.6 pc)
光谱类型 K0V
轨道参数
半长轴 (a) 0.0785 AU
轨道离心率 (e) 0.1±0.04
公转周期 (P) 8.667±0.003 d
角距 (θ) 6.23 mas
近星点时间 (T0) 2,453,496.8±0.06 JD
半振幅 (K) 3.51±0.15 m/s
物理性质
最小质量(m sin i)0.033 MJ
温度 (T) ~804 K
发现
发现时间 May 18, 2006
发现者 Lovis et al.
发现方法 径向速度
发表论文 Published
数据库参考
太阳系外行星
百科全书
data
SIMBADdata

HD 69830 b是环绕着HD 69830海王星质量超级地球质量的系外行星,它的质量10倍于地球,是在这个行星系中最小的。它的轨道非常靠近母恒星,公转一周只需要82/3的时间。

它看起来是一颗岩石行星,而不是气体巨星[1]。如果他成为气体巨星,它可能不会以这种形式留在该处[2]

如果HD 69830 b是一颗类地行星,模型预测的潮汐热会使表面的热通量高达大约55 W/m2,这是埃欧的20倍[3]

参考资料

  1. ^ Lovis; Mayor, Michel; Pepe, Francesco; Alibert, Yann; Benz, Willy; Bouchy, François; Correia, Alexandre C. M.; Laskar, Jacques; Mordasini, Christoph; et al. An extrasolar planetary system with three Neptune-mass planets. Nature. 2006, 441 (7091): 305–309 [2010-07-18]. PMID 16710412. doi:10.1038/nature04828. . (原始内容存档于2017-04-22). 
  2. ^ H. Lammer; et al. The impact of nonthermal loss processes on planet masses from Neptunes to Jupiters (PDF). Geophysical Research Abstracts. 2007, 9 (07850) [2010-07-18]. (原始内容存档 (PDF)于2019-12-15). 
  3. ^ Jackson, Brian; Richard Greenberg, Rory Barnes. Tidal Heating of Extra-Solar Planets. ApJ. 2008, 681: 1631. doi:10.1086/587641. . 


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HD 69830 b
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