ExoAtmospheres
IAC community database for exoplanet atmospheric observations
WASP-52 b
| Planet status | Confirmed |
|---|---|
| Planet type | Hot Jupiter |
| Period | 1.74977083 d |
| Mass | 0.46 MJ 146.188 M⊕ |
| Radius | 1.27 RJ 14.224 R⊕ |
| Semi major axis | 0.0272 AU |
| Star name | WASP-52 |
| Star distance | 140 pc |
| Star teff | 5000 K |
| Star radius | 0.79 R☉ |
| Temperature (calculated) | 1315 K |
| V | 12 mag |
| J | 10.588 mag |
| K | 10.086 mag |
| Alternate names | |
| Exoplanet Encyclopaedia |  |
Molecules
H2O: Detection CO2: Detection
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JWST-NIRSpec | JWST MEP - A World Under Spotty Starlight: Detection of CO2 and H2O in the Hot Saturn WASP-52b with JWST NIRSpec G395H2026, JWST GO 3969 Team, Yanbo Pan et al. |
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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: Theoretical prediction
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G-B: High resolution IR | Probing the extent of WASP-52 b's atmosphere. High-resolution observations and 3D modeling insights2025, F. Nail, A. Oklopčić et al. |
No evidence for an extended circumstellar structure from planetary outflowing He |
H2O: Detection He: Detection K: Upper limit
|
JWST-NIRISS | Transmission spectroscopy of WASP-52 b with JWST NIRISS: Water and helium atmospheric absorption, alongside prominent star-spot crossings2024, Marylou Fournier-Tondreau, Yanbo Pan et al. |
Transit observations with occulted spots. Tentative K |
Phase curve: Yes Dayside Temperature (occultation): 1550 K |
Spitzer | A Comprehensive Analysis Spitzer 4.5 $μ$m Phase Curve of Hot Jupiters2024, Lisa Dang, Taylor J. Bell et al. |
Dayside and nightside temperatures from phase curve at 4.5 um. Negative albedo |
He: No 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. |
Upper limit of <1.69 % with SPIRou. It is not consistent with previous detections. |
He: Detection
|
G-B: High resolution IR | Keck/NIRSPEC studies of He I in the atmospheres of two inflated hot gas giants orbiting K dwarfs: WASP-52b and WASP-177b2022, James Kirk, Leonardo A. Dos Santos et al. |
11 sigma detection of He I in the atmosphere of WASP-52b with Keck/NIRSPEC |
He: Upper limit
|
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. Tentative detection at |
Phase curve: Yes |
Spitzer | A New Analysis of 8 Spitzer Phase Curves and Hot Jupiter Population Trends: Qatar-1b, Qatar-2b, WASP-52b, WASP-34b, and WASP-140b2022, Erin May, Kevin Stevenson et al. |
Spitzer phase curve |
He: Upper limit
|
G-B:Low resolution IR | Constraints on Metastable Helium in the Atmospheres of WASP-69b and WASP-52b with Ultranarrowband Photometry2020, Vissapragada, Shreyas, Knutson, Heather A. et al. |
Using ultranarrowband photometry. |
Na: Detection K: Detection H: Detection
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G-B: High resolution visible | Detection of Na, K, and H$α$ absorption in the atmosphere of WASP-52b using ESPRESSO2020, G. Chen, N. Casasayas-Barris et al. |
With ESPRESSO detection of Na D1 (1.09±0.16%), Na D2 (1.31±0.13%), Hα (0.86±0.13%), K (0.46 ± 0.13%) |
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HST STIS | The HST PanCET Program: Hints of Na I and Evidence of a Cloudy Atmosphere for the Inflated Hot Jupiter WASP-52b2018, Alam, Munazza K., Nikolov, Nikolay et al. |
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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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G-B: Low resolution visible | A precise optical transmission spectrum of the inflated exoplanet WASP-52b2017, Louden, Tom, Wheatley, Peter J. et al. |
Flat transmission spectrum |
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G-B: Low resolution visible | Transmission spectroscopy of the inflated exoplanet WASP-52b, and evidence for a bright region on the stellar surface2016, Kirk, J., Wheatley, P. J. et al. |
Flat transmission spectrum from 3 band photometry (u', g', narrow Na filter) |