ExoAtmospheres
IAC community database for exoplanet atmospheric observations
KELT-11 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 4.736529 d |
| Mass | 0.195 MJ 61.971 M⊕ |
| Radius | 1.3 RJ 14.56 R⊕ |
| Semi major axis | 0.06229 AU |
| Star name | KELT-11 |
| Star distance | 98 pc |
| Star teff | 5370 K |
| Star radius | 2.72 R☉ |
| Temperature (calculated) | 1712 K |
| V | 8 mag |
| J | 6.616 mag |
| K | 6.122 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
H2O: Detection Cloudy: Upper limit
|
G-B: High resolution IR | Upper limits on atmospheric abundances of KELT-11b and WASP-69b from a retrieval approach2025, F. Lesjak, L. Nortmann et al. |
|
Na: Detection
|
G-B: High resolution visible | Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) VII. Detection of sodium on the long-transiting inflated sub-Saturn KELT-11 b2022, Dany Mounzer, Christophe Lovis et al. |
|
H2O: Detection
|
HST WFC3 | KELT-11 b: Abundances of water and constraints on carbon-bearing molecules from the Hubble transmission spectrum2020, Quentin Changeat, Billy Edwards et al. |
Spectral retrieval confirms the presence of water vapour. Features at 1.5 µm could come from CO, CO2 or HCN. |
Na: Upper limit
|
G-B: High resolution visible | High-resolution Transmission Spectroscopy of Four Hot Inflated Gas Giant Exoplanets2019, Žák, Jiří, Kabáth, Petr et al. |
The upper limit for a sodium (Na D lines) detection is therefore 0.06 %. Using transit observations with HARPS. |