ExoAtmospheres
IAC community database for exoplanet atmospheric observations
K2-33 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Neptune |
| Period | 5.424865 d |
| Mass | 3.7 MJ 1175.86 M⊕ |
| Radius | 0.45 RJ 5.04 R⊕ |
| Semi major axis | 0.0409 AU |
| Star name | K2-33 |
| Star distance | 139.8 pc |
| Star teff | 3540 K |
| Star radius | 1.05 R☉ |
| Temperature (calculated) | 864 K |
| V | 16 mag |
| J | 11.095 mag |
| K | 10.026 mag |
| Alternate names | EPIC 205117205 b, 2MASS J16101473-1919095 b, EPIC 205117205.01, WISE J161014.73-191909.6 b |
| Exoplanet Encyclopaedia |  |
Molecules
He: Upper limit
|
G-B: High resolution IR | Transit Spectroscopy of K2-33b with Subaru/IRD: Spin-Orbit Alignment and Tentative Atmospheric Helium2024, Teruyuki Hirano, Eric Gaidos et al. |
|
Cloudy: Detection
|
G-B:Low resolution IR | Hazy with a chance of star spots: constraining the atmosphere of the young planet, K2-33b2022, Pa Chia Thao, Andrew W. Mann et al. |
Slope in the low-res spectra from transits from several facilites (K2,Mearth,HST,Spitzer). Tholin hazes + spots. |