ExoAtmospheres
IAC community database for exoplanet atmospheric observations
HAT-P-2 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 5.6334729 d |
| Mass | 8.74 MJ 2777.572 M⊕ |
| Radius | 0.951 RJ 10.6512 R⊕ |
| Semi major axis | 0.0674 AU |
| Star name | HAT-P-2 |
| Star distance | 118 pc |
| Star teff | 6414 K |
| Star radius | 1.54 R☉ |
| Temperature (calculated) | 1478 K |
| V | 8.71 mag |
| J | 7.796 mag |
| K | 7.603 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
Molecular ratios: C/O, etc...: Detection
|
HST WFC3 | Re-analysis of 10 Hot-Jupiter Atmospheres with disequilibrium chemistry retrieval2025, Deborah Bardet, Quentin Changeat et al. |
|
Featureless spectra: Detection Phase curve: Yes |
HST WFC3 | Spectroscopically resolved partial phase curve of the rapid heating and cooling of the highly-eccentric Hot Jupiter HAT-P-2b with WFC32024, Bob Jacobs, Jean-Michel Désert et al. |
|
H: Upper limit
|
G-B: High resolution visible | A Detection of Hα in an Exoplanetary Exosphere2012, Jensen, Adam G., Redfield, Seth et al. |
H-alpha upper limit |