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克卜勒80

Kepler-80
觀測資料
曆元 J2000
星座 天琴座
星官
赤經 19h 44m 27.0s
赤緯 +39° 58′ 44″
視星等(V) 14.8
特性
天体测定
距离~688 ly
(~211 pc)
詳細資料
質量0.72 M
半徑0.738[1] R
溫度4250[1] K
金属量 [Fe/H]-0.56 [1] dex
其他命名
KOI-500

克卜勒80Kepler-80),又稱KOI-500,是一顆位於天琴座的恆星,該恆星旁已知有六顆太陽系外行星存在。

行星系統

[编辑]

截至2017年止,該恆星旁已發現六顆太陽系外行星。該系統的行星和母恆星距離異常地近,即使是最外側行星的軌道半長軸也只有日地距離的七分之一[1][2]

KOI-500的行星系[1]
成員
(依恆星距離)
质量 半長軸
(AU)
轨道周期
()
離心率 傾角 半径
f 0.0175 0.9868 ~0 81.36° 1.21 R
d 6.75 M 0.0372 3.0722 ~0 85.94° 1.53 R
e 4.13 M 0.0491 4.6449 ~0 86.52° 1.60 R
b 6.93 M 0.0658 7.0525 ~0 87.66° 2.67 R
c 6.74 M 0.0792 9.5236 ~0 87.66° 2.74 R
g 0.14 14.64558 89.35° 1.13 R

參考資料

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 OASIS. Abstractsonline.com. [2012-11-22]. 
  2. ^ Tiny Alien Solar System Discovery Explained (Infographic) | KOI-500 Exoplanets, Kepler. Space.com. [2012-11-22]. (原始内容存档于2012-11-23). 
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克卜勒80
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