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Table 5
Number of transits, NTr, required to detect H2O, CH4, CO2, and O3 with JWST for an Earth-like planet in the HZ of the corresponding host star.
| Host star | H2O | CH4 | CO2 | O3 |
|---|---|---|---|---|
| GJ 436 | 31 | 10 | 30 | 209 |
| GJ 1132 | 14 | 4 | 13 | 142 |
| TRAPPIST-1 | 12 | 3 | 10 | 172 |
| GJ 1214 | 17 | 4 | 15 | 171 |
| LHS 1140 | 25 | 5 | 21 | 354 |
| GJ 3470 | 91 | 17 | 80 | 792 |
| NLTT 41135 | 47 | 9 | 41 | 711 |
| K2-18 | 93 | 18 | 80 | 824 |
| LHS 6343 | 167 | 33 | 140 | 1332 |
| Kepler-42 | 168 | 30 | 106 | 2880 |
| K2-25 | 233 | 42 | 184 | 5887 |
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