Discovery Method
Transit
Consistent across records
←Back to Exoplanets
ExoplanetDetail
HAT-P-66 b
Host star HAT-P-66 • 17.82 R⊕ • 2.97 d orbit
Records
5
archive rows
Discovery
2016
Transit
Radius
17.82 R⊕
default parameter set
Mass
248.9 M⊕
default parameter set
HAT-P-66
1896 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. 2016
Host Star
HAT-P-66
Stable across source rows
Discovery Year
2016
Stable across source rows
Orbital Period
2.97 day
2.97 to 2.97
Semi-Major Axis
0.04 au
single adopted value
Radius
17.82 Rearth
15.65 to 17.82
Mass
248.9 Mearth
single adopted value
Density
0.24 g/cm**3
single adopted value
Equilibrium Temperature
1896 K
1848 to 1896
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 17.82 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HAT-P-66 b
17.82 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Refs
5
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massstable
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2016 | Transit | HATNet | Canon 200mm f/1.8L | 2.97 day | 17.82 Rearth | 248.9 Mearth | 1896 K | Hartman et al. 2016 |
| 2016 | Transit | HATNet | Canon 200mm f/1.8L | 2.97 day | 15.65 Rearth | — | 1848 K | ExoFOP |
| 2016 | Transit | HATNet | Canon 200mm f/1.8L | 2.97 day | — | — | — | Kokori et al. 2023 |
| 2016 | Transit | HATNet | Canon 200mm f/1.8L | 2.97 day | — | — | — | Ivshina & Winn 2022 |
| 2016 | Transit | HATNet | Canon 200mm f/1.8L | 2.97 day | — | — | — | Patel & Espinoza 2022 |