Table 1
Best-fit solution for TRAPPIST-1 from Agol et al. (2021).
| Planet | m (m⊕) | P (d) | a (au) | e | Period ratio |
|---|---|---|---|---|---|
| b | 1.375 | 1.511 | 0.012 | 0.007 | 1.603 (8:5) |
| c | 1.317 | 2.423 | 0.016 | 0.002 | 1.672 (5:3) |
| d | 0.390 | 4.050 | 0.022 | 0.007 | 1.507 (3:2) |
| e | 0.704 | 6.103 | 0.029 | 0.005 | 1.509 (3:2) |
| f | 1.044 | 9.210 | 0.039 | 0.010 | 1.342 (4:3) |
| g | 1.321 | 12.356 | 0.047 | 0.003 | 1.520 (3:2) |
| h | 0.327 | 18.779 | 0.062 | 0.004 |
Notes. The columns are the mass m, period P, semi-major axis a, eccentricity e, and period ratio between adjacent planets. The period ratio is between the given planet and the one immediately exterior to it. The mass assumes a stellar mass of 0.0898 M⊙ (Mann et al. 2019). An electronic version of this table containing the full set of orbital elements of each planet is available online at the CDS.
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