Discovery Method
Transit
Consistent across records
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ExoplanetDetail
HAT-P-1 b
Host star HAT-P-1 • 14.78 R⊕ • 4.47 d orbit
Records
16
archive rows
Discovery
2006
Transit
Radius
14.78 R⊕
default parameter set
Mass
166.9 M⊕
default parameter set
HAT-P-1
1322 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: Nikolov et al. 2014
Host Star
HAT-P-1
Stable across source rows
Discovery Year
2006
Stable across source rows
Orbital Period
4.47 day
4.46 to 4.47
Semi-Major Axis
0.06 au
0.06 to 0.06
Radius
14.78 Rearth
13.64 to 15.24
Mass
166.9 Mearth
166.5 to 169.7
Density
0.28 g/cm**3
0.28 to 0.39
Equilibrium Temperature
1322 K
1118 to 1322
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 14.78 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HAT-P-1 b
14.78 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
16
Refs
16
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 13.92 Rearth | 169.1 Mearth | 1306 K | Torres et al. 2008 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.46 day | 14.80 Rearth | 168.4 Mearth | 1320 K | Sing et al. 2016 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 13.64 Rearth | 166.5 Mearth | 1291 K | Southworth 2010 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | — | — | — | Wakeford et al. 2013 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 13.73 Rearth | 166.5 Mearth | — | Johnson et al. 2008 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 14.78 Rearth | 166.9 Mearth | 1322 K | Nikolov et al. 2014 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 14.78 Rearth | 168.1 Mearth | 1322 K | Turner et al. 2016 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 14.53 Rearth | — | 1118 K | ExoFOP |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | — | — | — | Ivshina & Winn 2022 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | — | — | — | 1322 K | Barstow et al. 2017 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | — | 169.7 Mearth | — | Ment et al. 2018 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 13.92 Rearth | 166.9 Mearth | — | Bonomo et al. 2017 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | 15.24 Rearth | 168.4 Mearth | — | Bakos et al. 2007 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | — | — | — | Kokori et al. 2022 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | — | — | — | Kokori et al. 2023 |
| 2006 | Transit | HATNet | Canon 200mm f/1.8L | 4.47 day | — | — | — | Yalçınkaya et al. 2024 |