最近類地太陽系外行星列表

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最近類地太陽系外行星列表中包含距離地球50光年內的類地岩石太陽系外行星系統。

他們主要可能由矽酸鹽岩石和(或)金屬所構成。類地行星在太陽系中是最接近太陽的內行星

大多數列表中的行星的陸地成分尚未有科學共識,表中僅列出可能的陸地成分。

2012年9月,天文學家宣布[1][2] 發現兩個行星環繞格利澤163[3],其中一顆格利澤163c,質量約地球的6.9倍,比地球還熱,被認為位於適居帶[1][2]

名稱 圖片 質量(M) 半徑(R) 密度 表面重力 (g) 表面溫度 半長軸 (AU) 離心率 地球相似指數 適居性 參考 主星 太陽的距離(ly)
比鄰星b
Artist's impression of the planet orbiting Proxima Centauri.jpg
≥1.27 ~1.1 234 K 0.05 <0.35 1位於適居帶中 [4] 比鄰星 4.22
半人馬座α Bb
Artist’s impression of the planet around Alpha Centauri B (Annotated).jpg
≥1.1 1200 K 0.04 0公轉軌道太過接近恆星 半人馬座α B 4.23
葛利斯876d[5]
Artist’s view of an exoplanet inspired by the discovery of Gliese 876 d.jpg
6.8 157

377 °C[6]
0.021 0.21 0估計表面溫度: 157-377°C[7] [8] 葛利斯876 15
葛利斯581e
Planet Gliese 581 e.png
≥1.7 0.029 0 0表面溫度過高,可能沒有大氣層存在 [9] 葛利斯581 20
葛利斯581c [10]
Planetary System in Gliese 581 (artist's impression).jpg
≥5.6 0.072 0 公轉軌道可能位於適居帶外側[11] [12] 葛利斯581 20
葛利斯581d [13]
Planet Gliese 581 d.png
≥5.6 2.34[14] 1.27[14] 233 K[14] 0,218 0 0.69[14] 1可能是一顆海洋行星[14]位於適居帶中[15] [16] 葛利斯581 20
葛利斯667Cc[17][18]
Gliese 667 Cc sunset.jpg
5.24 1.99 1.32 302 K 0.13 0.34 0.82 1位於適居帶中 [14] 葛利斯667C 22
室女座61b[19]
Artist concept 61vir b.png
≥5.1 0.050 0.12 0公轉軌道太過接近恆星 [20] 室女座61 28
HD 85512 b[21]
HD 85512 b (Artists's impression).jpg
≥3.6 1.74[14] 1.33[14] 351 K[14] 0.26 0.11 0.76[14] 1曾被認為是最適合人類居住的行星[14][22]直到發現葛利斯667Cc為止 [22] HD 85512 36
巨蟹座55e
Newneptune nasa big.jpg
8.6 0.016 0.17 0公轉軌道太過接近恆星 [23] 巨蟹座55 40
HD 40307 b[24] ≥4.2 0.047 0.2 0公轉軌道太過接近恆星 [25] HD 40307 42
HD 40307 c[24] ≥6.8 0.081 0.06 0公轉軌道太過接近恆星 [25] HD 40307 42
HD 40307 d [26]
A Trio of Super-Earths (artist's impression).jpg
≥9.2 0.134 0.07 0公轉軌道太過接近恆星 [27] HD 40307 42
HD 40307 e ≥3.5 0.1886 0.15 [28] HD 40307 42
HD 40307 f ≥5.2 385 K 0.247 0.02 [28] HD 40307 42
HD 40307 g ≥7.1 284 K[29] 0.600 0.29 [28] HD 40307 42

參見[编辑]

參考資料[编辑]

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