开普勒39(英语:Kepler-39,先前成为KOI-423)是一颗位于天鹅座的F型主序星。 它距离我们约3,560光年(1,090秒差距)。[1]目前已知有颗亚恒星伴星围绕它运行,即开普勒39b。[5]
开普勒39b通常被认为是棕矮星而不是行星,因为它不符合行星的标准定义。 太阳系外行星百科和NASA系外行星资料库等一些权威机构将其列入已确认行星的名单中。[2][6]
开普勒39的行星系[3]
成員 (依恆星距離)
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质量
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半長軸 (AU)
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轨道周期 (天)
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離心率
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傾角
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半径
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b
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7001201000000000000♠20.1+1.3 −1.2 MJ
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6999164000000000000♠0.164±0.003
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7001210872100000000♠21.087210±0.000037
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6999112000000000000♠0.112±0.057
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7001890699999999999♠89.07±0.22°
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7000124000000000000♠1.24+0.09 −0.10 RJ
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- ^ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. Gaia Data Release 2. Summary of the contents and survey properties. Astronomy & Astrophysics. 2018. Bibcode:2018A&A...616A...1G. arXiv:1804.09365
. doi:10.1051/0004-6361/201833051. VizieR中此天体在盖亚望远镜第二批数据发布的记录
- ^ 2.0 2.1 Kepler-39 b. The Extrasolar Planets Encyclopaedia. [2018-06-09]. (原始内容存档于2022-10-07).
- ^ 3.0 3.1 3.2 Bonomo, A. S.; et al. Improved parameters of seven Kepler giant companions characterized with SOPHIE and HARPS-N. Astronomy and Astrophysics. 2015, 575. A85 [2023-09-03]. Bibcode:2015A&A...575A..85B. S2CID 119230291. arXiv:1501.02653
. doi:10.1051/0004-6361/201323042. (原始内容存档于2023-03-30).
- ^ McQuillan, A.; Mazeh, T.; Aigrain, S. Stellar Rotation Periods of The Kepler objects of Interest: A Dearth of Close-In Planets Around Fast Rotators. The Astrophysical Journal Letters. 2013, 775 (1). L11. Bibcode:2013ApJ...775L..11M. S2CID 118557681. arXiv:1308.1845
. doi:10.1088/2041-8205/775/1/L11.
- ^ Bouchy, F.; et al. SOPHIE velocimetry of Kepler transit candidates. III. KOI-423b: an 18 MJup transiting companion around an F7IV star. Astronomy and Astrophysics. 2011, 533. A83 [2023-09-03]. Bibcode:2011A&A...533A..83B. S2CID 62836749. arXiv:1106.3225
. doi:10.1051/0004-6361/201117095. (原始内容存档于2022-03-29).
- ^ Kepler-39 b. NASA Exoplanet Archive. [2018-06-09]. (原始内容存档于2023-01-23).