Discovery Method
Transit
Consistent across records
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ExoplanetDetail
HAT-P-39 b
Host star HAT-P-39 • 17.61 R⊕ • 3.54 d orbit
Records
4
archive rows
Discovery
2012
Transit
Radius
17.61 R⊕
default parameter set
Mass
190.4 M⊕
default parameter set
HAT-P-39
1752 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: Hartman et al. 2012
Host Star
HAT-P-39
Stable across source rows
Discovery Year
2012
Stable across source rows
Orbital Period
3.54 day
3.54 to 3.54
Semi-Major Axis
0.05 au
0.05 to 0.05
Radius
17.61 Rearth
17.61 to 19.12
Mass
190.4 Mearth
180.8 to 190.4
Density
0.19 g/cm**3
0.18 to 0.19
Equilibrium Temperature
1752 K
1687.3 to 1752
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 17.61 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HAT-P-39 b
17.61 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Refs
4
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2012 | Transit | HATNet | Canon 200mm f/1.8L | 3.54 day | 17.61 Rearth | 190.4 Mearth | 1752 K | Hartman et al. 2012 |
| 2012 | Transit | HATNet | Canon 200mm f/1.8L | 3.54 day | — | — | — | Kokori et al. 2023 |
| 2012 | Transit | HATNet | Canon 200mm f/1.8L | 3.54 day | 17.61 Rearth | 180.8 Mearth | — | Bonomo et al. 2017 |
| 2012 | Transit | HATNet | Canon 200mm f/1.8L | 3.54 day | 19.12 Rearth | — | 1687.3 K | ExoFOP |