ExoAtmospheres
IAC community database for exoplanet atmospheric observations
HAT-P-12 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 3.2130598 d |
| Mass | 0.2105 MJ 66.8969 M⊕ |
| Radius | 0.949 RJ 10.6288 R⊕ |
| Semi major axis | 0.0384 AU |
| Star name | HAT-P-12 |
| Star distance | 142.5 pc |
| Star teff | 4650 K |
| Star radius | 0.7 R☉ |
| Temperature (calculated) | 965 K |
| V | 12.84 mag |
| J | 10.794 mag |
| K | 10.108 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
H2O: Detection CO: Detection CO2: Detection H2S: Detection Rayleigh Scattering: Upper limit CH4: Upper limit SO2: Upper limit NH3: Upper limit HCN: Upper limit
|
JWST-NIRISS | Information content of JWST transmission spectroscopy of the exoplanet HAT-P-12b from the optical to the mid-infrared2026, L. Heinke, M. Min et al. |
JWST/NIRIS SOSS combined with HST/STIS observations, which indicate a tentative Rayleigh slope |
He: Upper limit
|
G-B: High resolution IR | HET/HPF observations of Helium in warm, hot, and ultra-hot Jupiters2025, Jaume Orell-Miquel, Kyra Sampson et al. |
|
CO2: Detection CO: Detection H2O: Detection CH4: Upper limit
|
JWST-NIRSpec | Detection of CO$_2$, CO, and H$_2$O in the atmosphere of the warm sub-Saturn HAT-P-12b2025, N. Crouzet, B. Edwards et al. |
Combination of JWST+HST transmission observations. |
H2O: Upper limit CH4: Upper limit NH3: Upper limit
|
G-B: Low resolution visible | Evidence for stellar contamination in the transmission spectra of HAT-P-12b2021, C. Jiang, G. Chen et al. |
Transmission spectrum affected y stellar activity |
H2O: Detection
|
HST STIS | Optical to near-infrared transmission spectrum of the warm sub-Saturn HAT-P-12b2020, Ian Wong, Björn Benneke et al. |
|
H2O: Detection
|
HST WFC3 | A Population Study of Gaseous Exoplanets2018, Tsiaras, A., Waldmann, I. P. et al. |