ExoAtmospheres
IAC community database for exoplanet atmospheric observations
KELT-21 b
| Planet status | Confirmed |
|---|---|
| Planet type | UltraHot Jupiter |
| Period | 3.6127647 d |
| Mass | 3.91 MJ 1242.598 M⊕ |
| Radius | 1.586 RJ 17.7632 R⊕ |
| Semi major axis | 0.05224 AU |
| Star name | KELT-21 |
| Star distance | 415 pc |
| Star teff | 7598 K |
| Star radius | 1.638 R☉ |
| Temperature (calculated) | 2051 K |
| V | 10.5 mag |
| J | 10.149 mag |
| K | 10.09 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
He: Upper limit FeH: Upper limit H2O: Upper limit CO2: Upper limit CO: Upper limit HCN: Upper limit TiO: Upper limit VO: Upper limit OH: Upper limit CH4: Upper limit
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G-B: High resolution IR | Cross-correlation transmission spectroscopy of ultra-hot Jupiters WASP-189b, HAT-P-57b, KELT-17b, and KELT-21b with GIANO-B2026, P. Meni-Gallardo, J. Orell-Miquel et al. |
|
H: Upper limit Fe: Upper limit Fe+: Upper limit H2O: Upper limit Featureless spectra: Detection
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G-B: High resolution visible | High-resolution transmission spectroscopy study of ultra-hot Jupiters HAT-P-57b, KELT-17b, KELT-21b, KELT-7b, MASCARA-1b, and WASP-189b2022, Stangret, M., Casasayas-Barris, N. et al. |
No evidence of Hα absorption. Several non detections in cross-correlation |