Discovery Method
Transit
Consistent across records
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ExoplanetDetail
HAT-P-28 b
Host star HAT-P-28 • 13.59 R⊕ • 3.26 d orbit
Records
5
archive rows
Discovery
2011
Transit
Radius
13.59 R⊕
default parameter set
Mass
199.0 M⊕
default parameter set
HAT-P-28
1384 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: Buchhave et al. 2011
Host Star
HAT-P-28
Stable across source rows
Discovery Year
2011
Stable across source rows
Orbital Period
3.26 day
3.26 to 3.26
Semi-Major Axis
0.04 au
0.04 to 0.04
Radius
13.59 Rearth
12.36 to 13.59
Mass
199.0 Mearth
199.0 to 202.5
Density
0.44 g/cm**3
0.44 to 0.46
Equilibrium Temperature
1384 K
1237.8 to 1384
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 13.59 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HAT-P-28 b
13.59 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Refs
5
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2011 | Transit | HATNet | Canon 200mm f/1.8L | 3.26 day | — | — | — | Kokori et al. 2023 |
| 2011 | Transit | HATNet | Canon 200mm f/1.8L | 3.26 day | — | — | — | Kokori et al. 2022 |
| 2011 | Transit | HATNet | Canon 200mm f/1.8L | 3.26 day | 13.59 Rearth | 199.0 Mearth | 1384 K | Buchhave et al. 2011 |
| 2011 | Transit | HATNet | Canon 200mm f/1.8L | 3.26 day | 12.36 Rearth | — | 1237.8 K | ExoFOP |
| 2011 | Transit | HATNet | Canon 200mm f/1.8L | 3.26 day | 13.59 Rearth | 202.5 Mearth | — | Bonomo et al. 2017 |