Discovery Method
Transit
Consistent across records
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ExoplanetDetail
Qatar-1 b
Host star Qatar-1 • 12.81 R⊕ • 1.42 d orbit
Records
15
archive rows
Discovery
2010
Transit
Radius
12.81 R⊕
default parameter set
Mass
411.3 M⊕
default parameter set
Qatar-1
1418 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: Collins et al. 2017
Host Star
Qatar-1
Stable across source rows
Discovery Year
2010
Stable across source rows
Orbital Period
1.42 day
1.42 to 1.42
Semi-Major Axis
0.02 au
0.02 to 0.02
Radius
12.81 Rearth
12.52 to 13.23
Mass
411.3 Mearth
346.4 to 422.7
Density
1.08 g/cm**3
0.92 to 1.20
Equilibrium Temperature
1418 K
1231 to 1418
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 12.81 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
Qatar-1 b
12.81 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 |
|---|---|---|---|---|---|---|---|---|
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | Kokori et al. 2022 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | von Essen et al. 2013 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 12.80 Rearth | 411.0 Mearth | 1388 K | Mislis et al. 2015 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | Ivshina & Winn 2022 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 12.73 Rearth | 405.2 Mearth | — | Maciejewski et al. 2015 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 13.23 Rearth | — | — | Cruz et al. 2016 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 13.05 Rearth | 346.4 Mearth | — | Alsubai et al. 2011 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | Patel & Espinoza 2022 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 12.52 Rearth | — | 1231 K | ExoFOP |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | Mannaday et al. 2022 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 12.81 Rearth | 411.3 Mearth | 1418 K | Collins et al. 2017 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | von Essen et al. 2017 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 13.23 Rearth | 419.9 Mearth | — | Bonomo et al. 2017 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | 13.23 Rearth | 422.7 Mearth | 1389 K | Covino et al. 2013 |
| 2010 | Transit | Qatar | Canon 400mm f/2.8L | 1.42 day | — | — | — | Kokori et al. 2023 |