最近类地太阳系外行星列表
外观
最近类地太阳系外行星列表中包含距离地球50光年内的类地(岩石)太阳系外行星系统。
他们主要可能由硅酸盐岩石和(或)金属所构成。类地行星在太阳系中是最接近太阳的内行星。
大多数列表中的行星的陆地成分尚未有科学共识,表中仅列出可能的陆地成分。
2012年9月,天文学家宣布[1][2] 发现两个行星环绕格利泽163[3],其中一颗格利泽163c,质量约地球的6.9倍,比地球还热,被认为位于适居带中[1][2]。
名称 | 图片(想像图) | 质量(M⊕) | 半径(R⊕) | 密度 | 表面重力 (g) | 表面温度 | 半长轴 (AU) | 离心率 | 地球相似指数 | 适居性 | 参考 | 主星 | 与太阳的距离(ly) |
比邻星b | ![]() |
≥1.27 | ~1.1 | 234 K | 0.05 | <0.35 | 位于适居带中 | [4] | 比邻星 | 4.22 | |||
比邻星c | 7 | 39 K -234.2 °C |
1.489 | 0.04 | 比邻星 | 4.22 | |||||||
半人马座α Bb | ![]() |
≥1.1 | 1200 K | 0.04 | 半人马座α B | 4.23 | |||||||
巴纳德星b | ![]() |
≥3.23 | 105 K -168.15 °C |
0.404 | 0.32 | [5] | 巴纳德星 | 5.958 | |||||
罗斯128b | ![]() |
≥1.35 | ~1.1 | 罗斯128 | 10.89 | ||||||||
鲁坦b | ≥2.89 | ≥1.35 | 259 K -14 °C |
0.091 | 0.10 | 鲁坦星 | 12.20 | ||||||
沃夫1061b | ≥1.36 | ≥1.44 | 沃夫1061 | 13.8 | |||||||||
沃夫1061c | ![]() |
≥4.3 | ≥1.64 | [6] | 沃夫1061 | 13.8 | |||||||
沃夫1061d | ≥5.21 | ≥2.04 | 沃夫1061 | 13.8 | |||||||||
葛利斯876d[7] | ![]() |
6.8 | 157 – 377 °C[8] |
0.021 | 0.21 | 估计表面温度: 157-377°C[8] | [9] | 葛利斯876 | 15 | ||||
格利泽682b | ≥2 | [10] [11] [6] |
格利泽682 | 16 | |||||||||
葛利斯832c | ![]() |
≥5.4 | 295 K 22 °C |
0.162 | 0.03 | [12][13] | 葛利斯832 | 16.16 | |||||
天园增三b | ≥2.7 | 660 K 387 °C[14] |
0.1207 | 0 | [15] | 天园增三 | 19.71 | ||||||
天园增三c | ≥2.4 | 508 K 235 °C[14] |
0.2036 | 0 | [15] | 天园增三 | 19.71 | ||||||
天园增三d | ≥4.8 | 388 K 115 °C[14] |
0.3499 | 0 | [15] | 天园增三 | 19.71 | ||||||
葛利斯581e | ![]() |
≥1.7 | 0.029 | 0 | 表面温度过高,可能没有大气层存在 | [16] | 葛利斯581 | 20 | |||||
葛利斯581c [17] | ![]() |
≥5.6 | 0.072 | 0 | 公转轨道可能位于适居带外侧[18] | [19] | 葛利斯581 | 20 | |||||
葛利斯581d [20] | ![]() |
≥5.6 | 2.34[21] | 1.27[21] | 233 K[21] | 0,218 | 0 | 0.69[21] | 可能是一颗海洋行星[21]位于适居带中[22] | [23] | 葛利斯581 | 20 | |
HD 219134 b | ![]() |
4.5 | 1.6 | 700 K 427 °C |
[24] | HD 219134 | 21 | ||||||
葛利斯667Cc[25][26] | ![]() |
5.24 | 1.99 | 1.32 | 302 K | 0.13 | 0.34 | 0.82 | 位于适居带中 | [21] | 葛利斯667C | 22 | |
室女座61b[27] | ![]() |
≥5.1 | 0.050 | 0.12 | 公转轨道太过接近恒星 | [28] | 室女座61 | 28 | |||||
HD 85512 b[29] | ![]() |
≥3.6 | 1.74[21] | 1.33[21] | 351 K[21] | 0.26 | 0.11 | 0.76[21] | 曾被认为是最适合人类居住的行星[21][30]直到发现葛利斯667Cc为止 | [30] | HD 85512 | 36 | |
GJ 180 b | ≥2.3 | 312 K 39 °C |
[10][12] | 葛利斯180 | 38 | ||||||||
TRAPPIST-1b | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
TRAPPIST-1c | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
TRAPPIST-1d | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
TRAPPIST-1e | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
TRAPPIST-1f | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
TRAPPIST-1g | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
TRAPPIST-1h | ![]() |
[31] | TRAPPIST-1 | 39.5 | |||||||||
巨蟹座55e | ![]() |
8.6 | 0.016 | 0.17 | 公转轨道太过接近恒星 | [32] | 巨蟹座55 | 40 | |||||
HD 40307 b[33] | ≥4.2 | 0.047 | 0.2 | 公转轨道太过接近恒星 | [34] | HD 40307 | 42 | ||||||
HD 40307 c[33] | ≥6.8 | 0.081 | 0.06 | 公转轨道太过接近恒星 | [34] | HD 40307 | 42 | ||||||
HD 40307 d [35] | ![]() |
≥9.2 | 0.134 | 0.07 | 公转轨道太过接近恒星 | [36] | HD 40307 | 42 | |||||
HD 40307 e | ≥3.5 | 0.1886 | 0.15 | [37] | HD 40307 | 42 | |||||||
HD 40307 f | ≥5.2 | 385 K | 0.247 | 0.02 | [37] | HD 40307 | 42 | ||||||
HD 40307 g | ≥7.1 | 284 K[38] | 0.600 | 0.29 | [37] | HD 40307 | 42 |
参见
[编辑]参考资料
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