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克卜勒69

Kepler-69[1]

克卜勒69系統和太陽系的比較
Credit: NASA Ames/JPL-Caltech
觀測資料
曆元
星座 天鵝座[2][3][4] [5][1][6][7][8][9][10]
星官
赤經 19h 33m 02.62s
赤緯 +44° 52′ 08.0″
視星等(V)
特性
光谱分类G4V[2]
视星等 (V)13.7[2]
天体测定
徑向速度 (Rv)−38.7±0.1[2] km/s
距离2,700 ly(830 pc)[2][3] ly
詳細資料
質量0.810+0.090
−0.081
[2] M
半徑0.93+0.018
−0.012
[2] R
表面重力 (log g)4.40±0.15[2]
溫度5638±168[2] K
金属量 [Fe/H]−0.29±0.15[2] dex
其他命名
KIC 8692861 , KOI-172
參考資料庫
SIMBAD资料
系外行星百科资料

克卜勒69Kepler-69,舊稱KOI-172[1],或2MASS J19330262+4452080KIC 8692861[11]),是一顆天鵝座內與太陽相似的黃矮星,距離地球約2700光年(830秒差距)[2][3]

克卜勒69c是克卜勒69行星系中的超級地球
克卜勒69c克卜勒62e克卜勒62f地球的體積比較。

行星系

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克卜勒69旁有兩顆系外行星。克卜勒69b是一顆高溫超級地球。克卜勒69c也是一顆超級地球,體積大約是地球的1.7倍,位於克卜勒69的適居帶 [3][4]

克卜勒69行星系[2]
行星編號
(以距離順序排列)
質量上限
ME
軌道半長軸 (AU) 軌道週期 (d) 軌道離心率 軌道傾角 (°) 半徑 (RE)
b null 0.094+0.023
−0.016
13.722341+0.000035
−0.000036
0.16+0.17
−0.0010
89.62+0.26
−0.45
2.24+0.44
−0.29
c null 0.64+0.15
−0.11
242.4613+0.0059
−0.0064
0.14+0.18
−0.10
85.85+0.03
−0.08
1.71+0.34
−0.23

參考資料

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  1. ^ 1.0 1.1 1.2 Staff. NASA Exoplanet Archive-KOI-172.02. CalTech. [2013-01-11]. (原始内容存档于2016-01-03). 
  2. ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Barclay, Thomas; et al. A super-Earth-sized planet orbiting in or near the habitable zone around Sun-like star. arXiv. 2013-04-17 [2013-04-18]. astro-ph.EP arXiv:1304.4941v1 astro-ph.EP可免费查阅 请检查|arxiv=值 (帮助). (原始内容存档于2015-11-07). 
  3. ^ 3.0 3.1 3.2 3.3 Johnson, Michele; Harrington, J.D. NASA's Kepler Discovers Its Smallest 'Habitable Zone' Planets to Date. NASA. 2013-04-18 [2013-04-18]. (原始内容存档于2018-12-23). 
  4. ^ 4.0 4.1 Overbye, Dennis. 2 Good Places to Live, 1,200 Light-Years Away. New York Times. 2013-04-18 [18 April 18]. (原始内容存档于2017-12-25). 
  5. ^ Staff. Kepler KOI Search Results for KOI-172.02. Space Telescope Science Institute. 2013-01-07 [2013-01-11]. (原始内容存档于2015-10-02). 
  6. ^ Graham, Keith P. Star Finder for KIC=8692861. CThreePO.com. 2008 [2013-01-11]. (原始内容存档于2013-11-02). 
  7. ^ Harrington, J. D.; Johnson, Michele. NASA'S Kepler Mission Discovers 461 New Planet Candidates. NASA. 2013-01-07 [2013-01-11]. (原始内容存档于2013-05-19). 
  8. ^ Moskowitz, Clara. Most Earth-Like Alien Planet Possibly Found. Space.com. 2013-01-09 [2013-01-09]. (原始内容存档于2015-11-19). 
  9. ^ Borucki, William J.; et al.. Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data. The Astrophysical Journal. 2011-07-20, 736: 19 [2013-01-12]. Bibcode:2011ApJ...736...19B. arXiv:1102.0541可免费查阅. doi:10.1088/0004-637X/736/1/19. (原始内容存档于2014-07-14). 
  10. ^ Johnston, Wm. Robert. List of Extrasolar Planets. JohnstonArchive.com. 2011-10-02 [2013-01-11]. (原始内容存档于2014-03-27). 
  11. ^ KIC 8692861. [2013-04-21]. (原始内容存档于2013-11-02). 

外部連結

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克卜勒69
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