ExoAtmospheres
IAC community database for exoplanet atmospheric observations
WASP-69 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 3.8681382 d |
| Mass | 0.26 MJ 82.628 M⊕ |
| Radius | 1.057 RJ 11.8384 R⊕ |
| Semi major axis | 0.04525 AU |
| Star name | WASP-69 |
| Star distance | 50 pc |
| Star teff | 4715 K |
| Star radius | 0.813 R☉ |
| Temperature (calculated) | 963 K |
| V | 9.87 mag |
| J | 8.032 mag |
| K | 7.459 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
H2O: Detection Atmospheric dynamics: Detection
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JWST-NIRISS | Asymmetric Aerosol Distribution on the Terminators of the Warm Saturn WASP-69 b Revealed by JWST NIRISS/SOSS2026, Le-Chris Wang, Sagnick Mukherjee et al. |
Limb asymmetry detection |
CO2: Theoretical prediction SO2: Theoretical prediction CH4: Theoretical prediction Molecular ratios: C/O, etc...: Theoretical prediction
|
JWST-NIRSpec | Chemical Tracers for 3D Atmospheric Asymmetries on WASP-69 b2026, Nidhi Bangera, Ludmila Carone et al. |
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Featureless spectra: Detection
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G-B: High resolution IR | Searching for Molecular Signatures in 14 Transiting Exoplanets with SPIRou2026, A. Masson, S. Vinatier et al. |
SPIRou cross-correlation observations does not show molecular signals |
Cloudy: Upper limit
|
G-B: High resolution IR | Upper limits on atmospheric abundances of KELT-11b and WASP-69b from a retrieval approach2025, F. Lesjak, L. Nortmann et al. |
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CO2: Detection CH4: Detection H2O: Detection CO: Detection SO2: Upper limit Molecular ratios: C/O, etc...: Detection
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JWST-MIRI | A Next-Generation Exoplanet Atmospheric Retrieval Framework NEXOTRANS for Emission Spectroscopy: New Constraints and Atmospheric Characterization of WASP-69b Using JWST NIRCam and MIRI Observations2025, Tonmoy Deka, Liton Majumdar et al. |
|
He: Detection
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G-B: High resolution IR | HET/HPF observations of Helium in warm, hot, and ultra-hot Jupiters2025, Jaume Orell-Miquel, Kyra Sampson et al. |
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He: Detection
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G-B: High resolution IR | NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b2025, Romain Allart, Yann Carteret et al. |
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Na: Detection
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G-B: High resolution visible | The GAPS programme at TNG LXVI. A homogeneous search for Na i and its possible variability in ten gas giant exoplanets2024, D. Sicilia, L. Malavolta et al. |
Study of the strenght of the Na doublet lines from several transits |
Featureless spectra: Detection
|
G-B: Low resolution visible | Detection of faculae in the transit and transmission spectrum of WASP-69b2024, D. J. M. Petit dit de la Roche, H. Chakraborty et al. |
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H2O: Detection CO: Detection CO2: Detection Cloudy: Detection Molecular ratios: C/O, etc...: Detection Albedo: 0.64 |
JWST-NIRCam | Multiple Clues for Dayside Aerosols and Temperature Gradients in WASP-69 b from a Panchromatic JWST Emission Spectrum2024, Everett Schlawin, Sagnick Mukherjee et al. |
In all cases, aerosols are needed to fit the spectrum of the planet |
He: Detection
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G-B: High resolution IR | Probing atmospheric escape through metastable He I triplet lines in 15 exoplanets observed with SPIRou2024, A. Masson, S. Vinatier et al. |
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He: Detection
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G-B:Low resolution IR | Exoplanet Aeronomy: A Case Study of WASP-69b's Variable Thermosphere2024, W. Garrett Levine, Shreyas Vissapragada et al. |
He narrow band photometry and comparison with previous HiRes observations |
He: Detection
|
G-B: High resolution IR | LV: A HeI survey of close-in giant planets hosted by M-K dwarf stars with GIANO-B2024, G. Guilluy, M. C. D'Arpa et al. |
Confirmation of He detection with GIANO-B (3.91±0.22%) |
He: Detection
|
G-B: High resolution IR | WASP-69b's Escaping Envelope is Confined to a Tail Extending at Least Seven Planet Radii2023, Dakotah Tyler, Erik A. Petigura et al. |
Observations to study the He-tail |
He: Detection
|
G-B: High resolution IR | Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou2023, R. Allart, P. -B. Lemée-Joliecoeur et al. |
Excess absorption detection of 2.21 ± 0.46 % with SPIRou. |
TiO: Detection
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G-B: Low resolution visible | Tentative detection of titanium oxide in the atmosphere of WASP-69 b with a 4m ground-based telescope2023, Qinglin Ouyang, Wei Wang et al. |
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HCN: No detection CO: Detection CO2: No detection CH4: Detection NH3: Detection H2O: Detection
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G-B: High resolution IR | The GAPS Programme at TNG XXXVIII. Five molecules in the atmosphere of the warm giant planet WASP-69b detected at high spectral resolution2022, G. Guilluy, P. Giacobbe et al. |
|
Na: Detection
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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-N. |
He: Detection
|
G-B:Low resolution IR | The Upper Edge of the Neptune Desert Is Stable Against Photoevaporation2022, Shreyas Vissapragada, Heather A. Knutson et al. |
Narrow band photometry with Palomar/WIRC. Excess depth at mid-transit to be 0.512 +0.049 |
Na: Detection Rayleigh Scattering: Detection H: Upper limit K: No detection
|
G-B: High resolution visible | Probing the atmosphere of WASP-69 b with low- and high-resolution transmission spectroscopy2021, S. Khalafinejad, K. Molaverdikhani et al. |
|
FeH: Upper limit
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G-B: High resolution IR | A Search for FeH in Hot-Jupiter Atmospheres with High-dispersion Spectroscopy2020, Kesseli, Aurora Y., Snellen, I. A. G. et al. |
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Rayleigh Scattering: Detection
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G-B: Low resolution visible | The GTC exoplanet transit spectroscopy survey. XI. Possible detection of Rayleigh scattering in the atmosphere of the Saturn-mass planet WASP-69b2020, Murgas, F., Chen, G. et al. |
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He: Detection
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G-B: High resolution IR | Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b2018, Nortmann, Lisa, Pallé, Enric et al. |
|
H2O: Detection
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HST WFC3 | A Population Study of Gaseous Exoplanets2018, Tsiaras, A., Waldmann, I. P. et al. |
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Na: Detection
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G-B: High resolution visible | Detection of sodium in the atmosphere of WASP-69b2017, Casasayas-Barris, N., Palle, E. et al. |
Detection of sodium using HARPS-North |
H3+: Upper limit
|
G-B: High resolution IR | Astro-ph arXiv:2504.15393 | Non detection of H3+ emission |