Discovery Method
Transit
Consistent across records
←Back to Exoplanets
ExoplanetDetail
WASP-39 b
Host star WASP-39 • 14.34 R⊕ • 4.06 d orbit
Records
13
archive rows
Discovery
2011
Transit
Radius
14.34 R⊕
default parameter set
Mass
89.31 M⊕
default parameter set
WASP-39
1166 K equilibrium
Canonical Summary
Adopted planet values from the default parameter set
Values come from the archive's default parameter set. Missing values stay missing. Ranges and counts describe all source rows.
Selected source: Mancini et al. 2018
Host Star
WASP-39
Stable across source rows
Discovery Year
2011
Stable across source rows
Orbital Period
4.06 day
4.06 to 4.06
Semi-Major Axis
0.05 au
0.05 to 0.05
Radius
14.34 Rearth
14.23 to 15.85
Mass
89.31 Mearth
87.40 to 89.95
Density
0.17 g/cm**3
0.16 to 0.19
Equilibrium Temperature
1166 K
1075.6 to 1166
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 14.34 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
WASP-39 b
14.34 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Refs
13
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | 14.23 Rearth | 88.99 Mearth | — | Faedi et al. 2011 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | 14.24 Rearth | 88.99 Mearth | 1120 K | Sing et al. 2016 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | — | — | — | Ricci et al. 2015 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | 14.93 Rearth | 89.95 Mearth | — | Maciejewski et al. 2016 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | 14.34 Rearth | 89.31 Mearth | 1166 K | Mancini et al. 2018 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | 15.85 Rearth | — | 1075.6 K | ExoFOP |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | — | — | — | Ivshina & Winn 2022 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | — | — | — | Carter et al. 2024 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | — | — | — | Fischer et al. 2016 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | — | — | — | 1117 K | Barstow et al. 2017 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | 14.24 Rearth | 87.40 Mearth | — | Bonomo et al. 2017 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | — | 15.24 Rearth | — | — | Panek et al. 2023 |
| 2011 | Transit | SuperWASP | Canon 200mm f/1.8L | 4.06 day | — | — | — | Kokori et al. 2023 |