Discovery Method
Transit
Consistent across records
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ExoplanetDetail
K2-19 b
Host star K2-19 • 7 R⊕ • 7.92 d orbit
Records
18
archive rows
Discovery
2015
Transit
Radius
7 R⊕
default parameter set
Mass
30.80 M⊕
default parameter set
K2-19
temperature unconstrained
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: Entrican et al. 2026
Host Star
K2-19
Stable across source rows
Discovery Year
2015
Stable across source rows
Orbital Period
7.92 day
7.92 to 7.92
Radius
7 Rearth
6.59 to 8.20
Mass
30.80 Mearth
28.50 to 54.40
Density
0.49 g/cm**3
0.33 to 0.59
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 7 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
K2-19 b
7 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
18
Refs
18
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.74 Rearth | 28.50 Mearth | — | Dai et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | — | — | — | Kokori et al. 2023 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7 Rearth | 32.40 Mearth | 779 K | Howard et al. 2025 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7 Rearth | 30.80 Mearth | — | Entrican et al. 2026 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | — | 54.40 Mearth | — | Nespral et al. 2017 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.23 Rearth | — | — | Armstrong et al. 2015 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.46 Rearth | 44 Mearth | — | Barros et al. 2015 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 8.20 Rearth | — | — | Crossfield et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7 Rearth | 32.40 Mearth | — | Petigura et al. 2020 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.46 Rearth | — | — | Vanderburg et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 6.59 Rearth | 30.80 Mearth | 857 K | Almenara et al. 2025 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | — | — | — | Barros et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 6.67 Rearth | — | — | Kruse et al. 2019 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 6.59 Rearth | — | 782.7 K | ExoFOP |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.11 Rearth | — | 913 K | Montet et al. 2015 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 6.75 Rearth | — | — | Mayo et al. 2018 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.34 Rearth | — | — | Narita et al. 2015 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 7.92 day | 7.74 Rearth | — | 854 K | Sinukoff et al. 2016 |