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Table 2
Masses, radii, and semi-major axis for all planets in TRAPPIST-1 (Agol et al. 2021).
| Planet | M[M⊕ ] | R[R⊕ ] | ad [10−2 AU] | Teq[K] |
|---|---|---|---|---|
| b | 1.374 ± 0.069 | 1.116 |
1.154 | 398 |
| c | 1.308 ± 0.056 | 1.097 |
1.580 | 340 |
| d | 0.388 ± 0.012 | 0.788 |
2.227 | 286 |
| e | 0.692 ± 0.022 | 0.920 |
2.925 | 250 |
| f | 1.039 ± 0.031 | 1.045 |
3.849 | 218 |
| g | 1.321 ± 0.038 | 1.129 |
4.683 | 197 |
| h | 0.326 ± 0.020 | 0.775 ± 0.014 | 6.189 | 172 |
Notes. Equilibrium temperatures are calculated assuming a null albedo, with the stellar effective temperature, stellar radius, and semi-major axis provided by Agol et al. (2021).
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