ExoAtmospheres
IAC community database for exoplanet atmospheric observations
WASP-21 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 4.3225126 d |
| Mass | 0.3 MJ 95.34 M⊕ |
| Radius | 1.21 RJ 13.552 R⊕ |
| Semi major axis | 0.052 AU |
| Star name | WASP-21 |
| Star distance | 230 pc |
| Star teff | 5800 K |
| Star radius | 1.06 R☉ |
| Temperature (calculated) | 1262 K |
| V | 11.6 mag |
| J | 10.35 mag |
| K | 9.982 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
Na: Detection
|
G-B: High resolution visible | A survey of sodium absorption in ten giant exoplanets with high-resolution transmission spectroscopy2022, Adam B. Langeveld, Nikku Madhusudhan et al. |
Confirms previously reported detection of Na using HARPS and HARPS-N. |
Na: Detection K: Upper limit
|
G-B: Low resolution visible | Detection of Na in WASP-21b's lower and upper atmosphere2020, Chen, G., Casasayas-Barris, N. et al. |
Instrument: GTC/OSIRIS. |
Na: Detection
|
G-B: High resolution visible | Detection of Na in WASP-21b's lower and upper atmosphere2020, Chen, G., Casasayas-Barris, N. et al. |
Instruments: ESO3.6/HARPS, TNG/HARPS-N. |
Na: Detection
|
G-B: Low resolution visible | LRG-BEASTS: Ground-based Detection of Sodium and a Steep Optical Slope in the Atmosphere of the Highly Inflated Hot-Saturn WASP-21b2020, L. Alderson, J. Kirk et al. |