Discovery Method
Transit
Consistent across records
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ExoplanetDetail
HAT-P-12 b
Host star HAT-P-12 • 10.75 R⊕ • 3.21 d orbit
Records
15
archive rows
Discovery
2009
Transit
Radius
10.75 R⊕
default parameter set
Mass
67.06 M⊕
default parameter set
HAT-P-12
963 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. 2009
Host Star
HAT-P-12
Stable across source rows
Discovery Year
2009
Stable across source rows
Orbital Period
3.21 day
3.21 to 3.21
Semi-Major Axis
0.04 au
0.04 to 0.04
Radius
10.75 Rearth
10.30 to 15.24
Mass
67.06 Mearth
63.88 to 67.06
Density
0.32 g/cm**3
0.24 to 0.33
Equilibrium Temperature
963 K
918 to 975
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 10.75 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HAT-P-12 b
10.75 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
15
Refs
15
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | 10.76 Rearth | 66.74 Mearth | 960 K | Sing et al. 2016 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | — | — | 66.39 Mearth | — | Knutson et al. 2014 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | 10.75 Rearth | 67.06 Mearth | 963 K | Hartman et al. 2009 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | — | — | — | Sada & Ramón-Fox 2016 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | 10.30 Rearth | 63.88 Mearth | 955 K | Mancini et al. 2018 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | 11.10 Rearth | — | 918 K | ExoFOP |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | — | — | — | Ivshina & Winn 2022 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | — | — | — | 963 K | Barstow et al. 2017 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | — | 66.11 Mearth | — | Ment et al. 2018 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | 10.75 Rearth | 66.24 Mearth | — | Bonomo et al. 2017 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | 10.64 Rearth | 67.06 Mearth | 975 K | Öztürk & Erdem 2019 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | — | — | — | Kokori et al. 2022 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | — | — | — | Patel & Espinoza 2022 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | — | 15.24 Rearth | — | — | Panek et al. 2023 |
| 2009 | Transit | HATNet | Canon 200mm f/1.8L | 3.21 day | — | — | — | Kokori et al. 2023 |