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TRAPPIST-1
| Companion | Mass (⊕)[18][19] | Period [19] | Suhu | Surface Gravity (⊕) |
|---|---|---|---|---|
| b | 7000101699999999999♠1.017+0.154 −0.143 | 7000151087637000000♠1.51087637±0.00000039 | 391.8 ± 5.5 K (118.65 ± 5.50 °C; 245.57 ± 9.90 °F) (equilibrium)[19] ≥1,400 K (1,130 °C; 2,060 °F) (atmosphere)[19] 750–1,500 K (477–1,227 °C; 890–2,240 °F) (surface)[18] | 0.812 +0.104 −0.102[18] |
| c | 7000115599999999999♠1.156+0.142 −0.131 | 7000242180746000000♠2.42180746±0.00000091 | 334.8 ± 4.7 K (61.65 ± 4.70 °C; 142.97 ± 8.46 °F) (equilibrium) (for a null albedo)[17] | 0.966 +0.087 −0.092[18] |
| d | 6999297000000000000♠0.297+0.039 −0.035 | 7000404995900000000♠4.049959±0.000078 | 282.1 ± 4.0 K (8.95 ± 4.00 °C; 48.11 ± 7.20 °F) (for a null albedo)[19] | 0.483 +0.048 −0.052[18] |
| e | 6999772000000000000♠0.772+0.079 −0.075 | 7000609904300000000♠6.099043±0.000015 | 246.1 ± 3.5 K (−27.05 ± 3.50 °C; −16.69 ± 6.30 °F)[19] | 6999930000000000000♠0.930+0.063 −0.068[18] |
| f | 6999934000000000000♠0.934+0.080 −0.078 | 7000920558499999999♠9.205585±0.000016 | 219 K (−54 °C; −65 °F), ≳1,400 K (1,130 °C; 2,060 °F)[20] | ~0.62[17] |
| g | 7000114799999999999♠1.148+0.098 −0.095 | 7001123544730000000♠12.354473±0.000018 | 198.6 ± 3.8 K (−74.55 ± 3.80 °C; −102.19 ± 6.84 °F)[17] | ~1.06[17] |
| h | 6999331000000000000♠0.331+0.056 −0.049 | 7001197679530000000♠19.767953±0.000080 | 169 K (−104 °C; −155 °F)[21] | ~? |
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