WASP-39b
E1006894
WASP-39b is a hot, Saturn-mass exoplanet whose atmosphere—rich in water vapor and detected carbon dioxide—has made it a key target for detailed characterization by the James Webb Space Telescope.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
exoplanet
ⓘ
gas giant planet ⓘ hot Saturn ⓘ |
| atmosphereContains |
carbon dioxide
ⓘ
carbon monoxide ⓘ potassium ⓘ sodium ⓘ sulfur dioxide ⓘ water vapor ⓘ |
| atmosphereFeature | clouds and hazes ⓘ |
| catalogDesignation |
EPIC 228724232 b
NERFINISHED
ⓘ
TOI-1364 b NERFINISHED ⓘ |
| daySideTemperature | on the order of 1100–1200 K ⓘ |
| discoveredBy | Wide Angle Search for Planets NERFINISHED ⓘ |
| discoveryMethod | transit method ⓘ |
| discoveryYear | 2011 ⓘ |
| distanceFromEarth | about 700 light-years ⓘ |
| distanceFromEarthUnit | light-year GENERATED ⓘ |
| equilibriumChemistry | shows evidence of disequilibrium via sulfur dioxide detection ⓘ |
| equilibriumTemperature | about 1100 K ⓘ |
| hasPhaseCurveMeasurements | yes ⓘ |
| hasPhotometricObservations | yes ⓘ |
| hasSpectroscopicObservations | yes ⓘ |
| hasTransit | yes ⓘ |
| hasTransmissionSpectrum | yes ⓘ |
| hostStar | WASP-39 NERFINISHED ⓘ |
| hostStarMetallicity | sub-solar ⓘ |
| hostStarType | G-type main-sequence star ⓘ |
| isTidalLocked | likely tidally locked to its star ⓘ |
| JWSTProgram | Early Release Science NERFINISHED ⓘ |
| locatedInConstellation | Virgo NERFINISHED ⓘ |
| mass | about 0.28 Jupiter masses ⓘ |
| metallicity | atmosphere enriched in heavy elements relative to host star ⓘ |
| notableFor |
detailed atmospheric characterization across a wide wavelength range
ⓘ
first robust detection of CO2 in an exoplanet atmosphere by JWST ⓘ |
| observedBy |
Hubble Space Telescope
NERFINISHED
ⓘ
James Webb Space Telescope NERFINISHED ⓘ Spitzer Space Telescope NERFINISHED ⓘ |
| orbitalPeriod | about 4.055 days ⓘ |
| orbitalPeriodUnit | day ⓘ |
| orbits | WASP-39 NERFINISHED ⓘ |
| planetarySystem | WASP-39 system NERFINISHED ⓘ |
| planetType | hot Saturn ⓘ |
| radius | about 1.3 Jupiter radii ⓘ |
| semiMajorAxis | about 0.048 AU ⓘ |
| surfaceGravity | lower than Jupiter’s due to inflated radius ⓘ |
| transitDepth | on the order of a few percent in visible light ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.