ExoAtmospheres
IAC community database for exoplanet atmospheric observations
TOI-421 b
| Planet status | Confirmed |
|---|---|
| Planet type | Warm Neptune |
| Period | 16.06815 d |
| Mass | 0.0511 MJ 16.23958 M⊕ |
| Radius | 0.4612 RJ 5.16544 R⊕ |
| Semi major axis | 0.1182 AU |
| Star name | TOI-421 |
| Star distance | 74.7969 pc |
| Star teff | 5325 K |
| Star radius | 0.87 R☉ |
| Temperature (calculated) | 697 K |
| V | 9.931 mag |
| J | 8.547 mag |
| K | 8.071 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
H2O: Detection SO2: Upper limit CO: Upper limit
|
JWST-NIRISS | TOI-421 b: A Hot Sub-Neptune with a Haze-Free, Low Mean Molecular Weight Atmosphere2025, Brian Davenport, Eliza M. -R. Kempton et al. |
0.83–5 µm JWST transmission spectrum. Hints of SO2, CO |