ExoAtmospheres
IAC community database for exoplanet atmospheric observations
HD 219666 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Neptune |
| Period | 6.03607 d |
| Mass | 0.0522 MJ 16.58916 M⊕ |
| Radius | 0.4202 RJ 4.70624 R⊕ |
| Semi major axis | 0.06356 AU |
| Star name | HD 219666 |
| Star distance | 94.4 pc |
| Star teff | 5527 K |
| Star radius | 1.03 R☉ |
| Temperature (calculated) | 1073 K |
| V | 9.809 mag |
| J | 8.557 mag |
| K | 8.158 mag |
| Alternate names | TOI-118 |
| Exoplanet Encyclopaedia |  |
Molecules
H2O: Detection
|
HST WFC3 | HST Transmission Spectra of the Hot-Neptune HD 219666 b: Detection of Water and the Challenge of Constraining Both Water and Methane with HST2025, Matthew M. Murphy, Thomas G. Beatty et al. |