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HD 75289 b

HD 75289 b
发现
發現者斯特凡·烏德里等人
發現日期1999年2月1日
徑向速度
軌道參數
半長軸0.0482 ± 0.0028 AU
離心率0.034 ± 0.029
軌道週期3.509267 ± 0.000064 d
近心點經度141°
近心點時間2,450,830.34 ± 0.48 JD
半振幅54.9 ± 1.8 m/s
物理特徵
質量>0.467 ± 0.041 MJ

HD 75289 b是一顆位於船帆座太陽系外行星,母恆星是HD 75289。該行星的質量下限是木星的一半,並且軌道極為接近圓形,公轉週期3.5日[1]。藉著對該行星的母恆星光度研究,科學家認為行星的反照率一定低於0.12,否則以該行星是氣體巨行星的狀況,它的反射光會被偵測到。

該行星是由日內瓦系外行星搜尋團隊以都卜勒光譜學方式偵測到[2]

參考資料

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  1. ^ Butler, R. P.; et al. Catalog of Nearby Exoplanets. The Astrophysical Journal. 2006, 646 (1): 505–522 [2012-11-21]. Bibcode:2006ApJ...646..505B. arXiv:astro-ph/0607493可免费查阅. doi:10.1086/504701. (原始内容存档于2009-05-02). 
  2. ^ Udry, S.; et al. The CORALIE survey for southern extra-solar planets II. The short-period planetary companions to HD 75289 and HD 130322. Astronomy and Astrophysics. 2000, 356 (2): 590–598 [2012-11-21]. Bibcode:2000A&A...356..590U. (原始内容存档于2012-03-28). 

外部連結

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HD 75289 b
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